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Malware In Quantum Computing?

MattSparkes writes, "Today's quantum computers are not sophisticated enough to do anything malicious to your online bank account; the field is in its infancy. However, there are in theory more ways to attack quantum computers than classical ones. As quantum networking takes off, this is going to become a larger and more immediate problem." The Wikipedia article correctly identifies as an unsolved problem in physics the question of whether it is possible to construct a practical computer that performs calculations on qubits.

91 comments

  1. Links by MyLongNickName · · Score: 2, Funny

    Anyone want to post the correct links?

    (must post anonymously so people don't figure out I RTFA)

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    1. Re:Links by StyxRiver · · Score: 0

      Posting anonymously?

      Let me know how that works out for you, MyLongNickName.

    2. Re:Links by LiquidCoooled · · Score: 1, Funny

      (must post anonymously so people don't figure out I RTFA)

      Your security procedures, someone must have looked at the qubit representing your anonymous state.

      --
      liqbase :: faster than paper
    3. Re:Links by Anonymous Coward · · Score: 0

      Ok straight up the article is wrong.

      "link n of these superposed qubits together in a properly configured array and they act as a memory register that can represent every whole number between 1 and 2n at the same time. Manipulate these "entangled" quantum states - by hitting the atoms with a suitably shaped laser pulse, for example - and you can perform a computation on all the numbers at once."

      That should be 2^n.

      Also as someone who is doing their honours thesis on quantum computing I believe i can shed some light on the matter. The idea of quantum malware is totally stupid. All 'malware' would have to do is measure the state of any qubit at any time and the whole process of the computation would grind to a halt. The act of measurment in quantum systems destroys the super-position they talk about. So creating malware code that destroys the superposition, would be as trivial as acting with a measurement gate mid-way through the computation.

      For those of you wanting to read up on this field the two best books I can recommend are "Quantum Computing" by josef Gruzka and "Quantum computing and quantum information" by Neilsen and Chuang.

  2. Quantum Malware vs Observation by db32 · · Score: 1

    Does that mean by not looking at it it will cease to exist?

    --
    The only change I can believe in is what I find in my couch cushions.
    1. Re:Quantum Malware vs Observation by Who235 · · Score: 3, Funny

      No.

      When your AV program detects it, it flies off and infects someone else's computer.

    2. Re:Quantum Malware vs Observation by Tackhead · · Score: 5, Funny
      > Does that mean by not looking at it it will cease to exist?

      No, that's Windows Quantum Advantage: If Redmond observes that your copy of Windows Quantum is not Genuine, a hammer will break a vial of cyanide inside your PC, and your cat will die.

      Quantum malware is what your dog installs to introduce sufficient uncertainty in Redmond's WQA check to ensure your cat's demise. (After all, when your cat's momentum is known to be precisely zero, it's gotta be somewhere around your PC.)

    3. Re:Quantum Malware vs Observation by syntaxglitch · · Score: 4, Funny

      (After all, when your cat's momentum is known to be precisely zero, it's gotta be somewhere around your PC.)

      And if it's anything like my cat, it almost always will indeed have a momentum of precisely zero.

    4. Re:Quantum Malware vs Observation by spun · · Score: 3, Funny

      And if it's anything like my cat, when you know its momentum is precisely zero, its location can be damn near anywhere including right under your foot where you were sure there was no cat a moment ago.

      --
      - None can love freedom heartily, but good men; the rest love not freedom, but license. -- John Milton
    5. Re:Quantum Malware vs Observation by Chr0nik · · Score: 1

      it's gotta be somewhere around your PC

      Like on my friggin keyboard? ...damn cat

      --


      ... what did you expect, something profound?
  3. Simple solution by neuro.slug · · Score: 2, Funny

    Just don't install Windows Vista XP Pro, which, ironically, requires a quantum computer to run.

    1. Re:Simple solution by Reverend528 · · Score: 2, Funny
      Just don't install Windows Vista Pro

      As long as you don't put all 32 qubits into a superposition, you'll be fine. Otherwise you may be forced to pay the licensing fee to run it on 4,294,967,296 CPUs.

    2. Re:Simple solution by Anpheus · · Score: 1

      And to think, I almost bought into their pennies-per-cpu licensing fee! It's a good thing any research department that can afford a quantum computer can afford the multi-million dollar Windows Quantum (Student and Teacher Edition, of course.)

    3. Re:Simple solution by KDR_11k · · Score: 1

      I'm not putting them into superposition, MS can send a tech over to look at them himself!

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
  4. Obligatory: quantum virus... by fahrbot-bot · · Score: 3, Funny

    I'm a little uncertain, but I think that you can either know what's been infected, or how fast it's being infected, but not both...

    --
    It must have been something you assimilated. . . .
    1. Re:Obligatory: quantum virus... by mahesh_gharat · · Score: 0

      I wish, I had some mod points to mod the parent up and funny!

      Read http://en.wikipedia.org/wiki/Uncertainty_principle

      I remember one more on the same lines...
      Mr. Heisenberg is driving on the free way and a police officer stopped him for speeding. Officer walks up to Heisenberg's car and asks him, "Sir, do you know how fast you are going?" Mr. Heisenberg said "Officer, I have no idea how fast I am going, but I know exactly where I am."

  5. Where there are worms... by LiquidCoooled · · Score: 2, Funny

    ...There are wormholes.
    These are normally found where there is an abundance of tachyon emissions.

    Make a sensor for those and we can remove the wormholes and finally get rid of the worms.

    QED

    --
    liqbase :: faster than paper
    1. Re:Where there are worms... by WilliamSChips · · Score: 1

      But SG-1 needs wormholes to save the world from the Goa'uld!

      --
      Please, for the good of Humanity, vote Obama.
  6. Virus Destroys Universe by WED+Fan · · Score: 0

    What we need is a Zero Day Quantum Virus exploiting Quantum FireFox and maxing out the Universal Entropy Index.

    --
    Politics is the art of looking for trouble, finding it everywhere, diagnosing it incorrectly and applying the wrong fix.
    1. Re:Virus Destroys Universe by Mattwolf7 · · Score: 4, Funny

      You missed the memo, Firefox is immune to Zero Day exploits, but those pesky -1 Day exploits are another story...

  7. The first guy to discover he has been hacked.... by Anonymous Coward · · Score: 1, Funny

    "What is the answer to life, the universe and everything?" Computer prints out "1337".

  8. Relativistic quantum information theory by Anonymous Coward · · Score: 0

    I was startled (though I shouldn't have been in retrospect, of course) to find out that quantum spin entanglement is NOT relativistically invariant. With a moving observer that boosts to a new reference frame, degree of entanglement actually changes. I've yet to see a full explanation of the implications of that for quantum computing, which always seems to be in the nonrelativistic approximation....

    1. Re:Relativistic quantum information theory by khallow · · Score: 1

      I decided to look this up. For example, this paper describes how it can occur using the spin of a particle. Basically, if an observer in a different frame of reference observes an entangled state of this particle, that observer will see some degree of decoherence that gets worse as the frames of reference diverge. Mathematically, Lorentz transforms mix spin and momentum of the particle, ultimately destroying entanglement of the spin. What's interesting is that this paper describes a way to entangle the spins of multiple particles in a relativistically invariant way. I just scanned the begining of the paper so I don't know any more about it.

  9. There is Malware by Anonymous Coward · · Score: 0
    It's called "Tunneling Viruses". It's the big thing in the year 2175.

    You see this is how it works:

    You open up a quantum level black hole. Through this black hole, you send a virus. This virus can do anything: Set up a stock market account where some ancestor of yours buys XYZ company at $0.05/share, you can get pr0n of women who haven't mutated (unfortunately, by 2075, the ozone layer is gone and all of that solar radiation has mutated the human race.) The only way folks can mate now is to look at ancient pr0n!

  10. blue sky speculation by Lurker2288 · · Score: 3, Insightful

    Quantum malware will be a huge threat...as soon as we have the widespread adoption of quantum computers performing sensitive tasks. And people who understand how to program viruses for them. And quantum computers for the virus programmers.

    Is this really even a story? We may as well be worrying about where to buy reliable crossbows once the atomic wars destroy civilization.

    1. Re:blue sky speculation by Chris+Burke · · Score: 1

      We may as well be worrying about where to buy reliable crossbows once the atomic wars destroy civilization.

      I agree, but my "Ask Slashdot" article on the subject was rejected. :(

      --

      The enemies of Democracy are
    2. Re:blue sky speculation by cstoner · · Score: 1

      The problem is that "quantum malware" can be as simple as kicking a machine (or setting off a sufficiently sized bomb nearby). Quantum states are fickle and easy to shift.
      This is the same thing as a virus that erases/corrupts your hard-drive.

      Computer viruses have come a long way since then, and so will "quantum malware." The real point is that this is the first paper of it's kind (in nearly 2 decades of research on quantum computing).

    3. Re:blue sky speculation by KDR_11k · · Score: 1



      So a PC with a Maxtor harddrive is like a quantum computer?

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
  11. Quantum outcomes by Anonymous Coward · · Score: 0

    No fair! You changed the value of my bank account my looking at it.

  12. yes it is too early to think about it by Quadraginta · · Score: 3, Insightful

    I'd like to point out, vice Larry Niven, that when teleportation and faster-than-light drives are invented they will make new types of crime possible.

    Not only that, but when immortality becomes possible, just think of the new pressures on the Earth's resources. Yet I'm going to bet those irresponsible doctor and medical researcher types haven't thought at all about this as they try to cure cancer and so forth.

    1. Re:yes it is too early to think about it by Joebert · · Score: 1
      Not only that, but when immortality becomes possible, just think of the new pressures on the Earth's resources. Yet I'm going to bet those irresponsible doctor and medical researcher types haven't thought at all about this as they try to cure cancer and so forth.

      Well, if there was immortality, we wouldn't have much stopping us from searching the galaxy for more resources would we ?
      --
      Wanna fight ? Bend over, stick your head up your ass, and fight for air.
    2. Re:yes it is too early to think about it by Orange+Crush · · Score: 1

      Depends. Age/Disease immortality doesn't mean we're immune to starvation, getting smooshed or suffocated. So we'd still need to build a ship that can propel itself between stars, and carry enough fuel and energy to generate the food and work reliably for the hundreds and thousands of years a trip would take yet still spend fewer resources than such a mission could realistically bring back. Plenty of hurdles left methinks.

    3. Re:yes it is too early to think about it by khallow · · Score: 1

      Oh, great. Those doctors haven't thought of what will happen when the immortal, ravenous human hordes hit the fragile galactic ecosystem either. Well, the one that will exist in a few billion years that is. How irresponsible.

    4. Re:yes it is too early to think about it by Pharmboy · · Score: 1

      I always thought that immortality could be used as a stealth weapon, albeit a slow one. Pretend there is a country you don't like but can't legally go to war with. For the sake of arguement, lets pretend it is France.

      1. USA offers all French seniors free immortality pills. (who would want to die?)
      2. French govt. checks for retirement never end, so they must raise taxes each year.
      3. Young educated people can't take the taxes, they leave and come to America.
      4. France is screwed because they are broke and the average citizen is 95.

      I mean what do you do, raise the retirement age to "infinity minus 10"?

      Oh, and it is the drug companies who create new drugs, not doctors. And they have no interest in curing a disease when it is more profitable to treat it with many drugs.

      --
      Tequila: It's not just for breakfast anymore!
    5. Re:yes it is too early to think about it by Pharmboy · · Score: 1

      ...what will happen when the immortal, ravenous human hordes hit the fragile galactic ecosystem ...

      I'm waiting for the protests from the new PETA...

      People for the Ethical Treatment of Asteroids.

      --
      Tequila: It's not just for breakfast anymore!
    6. Re:yes it is too early to think about it by nine-times · · Score: 1

      I think you're right except for the "too early to think about it" part. Why wouldn't we want to think about the possible consequences of our inventions? Must we make all our mistakes and screw things up before we start thinking about them, or can't we try to consider the problems we might be inventing in order to avoid them?

    7. Re:yes it is too early to think about it by Joebert · · Score: 1

      This message not actually brought to you by,
      Trojan Condoms - Doing their part to save the galaxy.

      --
      Wanna fight ? Bend over, stick your head up your ass, and fight for air.
    8. Re:yes it is too early to think about it by Quadraginta · · Score: 1

      Why wouldn't we want to think about the possible consequences of our inventions?

      Becausing thinking takes energy and time, which may be put to better use elsewhere. Or to put it more poetically:

      "If all of us contemplate the Infinite instead of fixing the drains, many of us will die of cholera."

      While we always hear quite a lot about the wisdom of thinking everything out ahead of time, I'll just mention that there's a lot to be said for trial-and-error, too. You waste a lot less time thinking carefully through things that will never happen, for example.

    9. Re:yes it is too early to think about it by Iron+Condor · · Score: 1

      I always thought that immortality could be used as a stealth weapon, albeit a slow one. Pretend there is a country you don't like but can't legally go to war with.

      ...so you elect a Republican president and bomb the hell outta them anyways. "legal, shmegal" be damned. Much cheaper than immortality drugs.

      --
      We're all born with nothing.
      If you die in debt, you're ahead.
    10. Re:yes it is too early to think about it by Valdoran · · Score: 0
      1. USA offers all French seniors free immortality pills. (who would want to die?)
      Uh... who wouldn't want to die?

      Really, I don't think all that much sane beings want to live forever, while still ageing (as in your example).
    11. Re:yes it is too early to think about it by ConceptJunkie · · Score: 1

      So how is that different from France now?

      --
      You are in a maze of twisty little passages, all alike.
    12. Re:yes it is too early to think about it by nine-times · · Score: 1

      Sure, that might be true if we were, for example, contemplating every possible scenario of extra-terrestrial visitation. What happens if Jesus comes from planet Nebulon riding a purple dragon? Yeah, that probably not worth wondering about. Quantum computing, on the other hand, is something being worked on right now. If there are going to be security flaws fundamental to the technology, it might be worth thinking about.

      Your other example, will we overtax our natural resources if we can stave off death for hundreds of years? That sounds like a real problem to me. Given that we're already taxing our natural resources, it seems worthwhile to question whether we're heading for a serious overpopulation problem given birth rates and life expectancy. I don't see why we shouldn't be thinking about it.

    13. Re:yes it is too early to think about it by sarf · · Score: 1

      It's the Human Way (tm)!

      Tried and tested for thousands of years - why change a clearly winning concept? :)

    14. Re:yes it is too early to think about it by sarf · · Score: 1

      Don't worry.

      First of all, retiring is only a viable option when society (and the insurance companies) know that you are going to kick the bucket (statistically) soon after starting to cash out on the retirement money.

      "Retiring" as a concept will be abolished, because the only reason for retiring is growing too old to be a productive cog in the machinery.

      Sidenote: I wonder how people would do things differently with regards to their work if they were, essentially, never going to die of age.

      Of course, society would be a bit... different with people not dying of age - think of all the long-term investment issues. Plus Earth running out of space really really really quickly instead of just inevitably as it is now.
      What, you thought people would stop having children just because no one will die of age?

      (For some speculation on how people might behave when they are longer lived, feel free to peek at some of R. A. Heinleins books about the Howard Families - "Methusaleh's Children" might be the most appropriate in this context)

  13. Unsolved problems in physics by Anonymous Coward · · Score: 0

    You mean Wikipedia got something right?

  14. Oh yeah by Anonymous Coward · · Score: 0

    Tomorrow on Slashdot: Is The Sun About to Kill Us All? It's not too early to think about it.

  15. Ooh, tricky... by gorckat · · Score: 1

    I'll bet that if your quantum antivirus knows you have a quantum virus it won't know what directory its in and if it knows the directory it won't know the name of the files to kill...

  16. A layman's take on this article by hellfire · · Score: 3, Insightful

    IANAPhysist. In fact, when the article began to spew forth quantum mechanics info, my eye began to develop a twitch and I started to drool.

    However, I am a self proclaimed computer geek. The main benefit of quantum computers, as I understand it, is an exponential leap in computing power and storage of such systems. If I understand correctly, a qubit can be altered by it's environment and change it's state, thus ruining it's data. I fail to see how this differs from computers today. Run a magnet over a hard drive enough times and good by data. Hard drives fail and lose data all the time, but we have sophisticated data checking algorythms designed to catch this kind of thing so that it doesn't get out of hand. It looks like they are doing something similar here.

    I don't understand how one creates a worm with this either. If you know qubit for qubit, what data you want to change, then perhaps, but that requires knowing the qubits ahead of time, doesn't it? Same way with bits today. People create worms due to vulnerabilities within the hardware and software that they can program in. I know of no viruses which rewrite data specifically on their knowledge of ones and zeros.

    Could a worm try to attack the physical nature of a quantum computer and run the data by physically attacking it? I don't know in quantum computers, but maybe that's what they are saying. The article is sufficiently arcane that it's difficult to see if it's just an attempt at fear mongering among us lessers, by saying "ooooo quantum computers are vulnerable to worms!" or if there is any real value to this article.

    A quantum to english translator is needed :)

    --

    "All great wisdom is contained in .signature files"

    1. Re:A layman's take on this article by geoffspear · · Score: 3, Funny

      The main problem is that it's really hard to catch the guys putting viruses on your computers when they're living in a parallel universe.

      --
      Don't blame me; I'm never given mod points.
    2. Re:A layman's take on this article by Anonymous Coward · · Score: 0

      I'm sick of parallel quantum virus writers... always lording their hats over me...

    3. Re:A layman's take on this article by Vitriol+Angst · · Score: 1

      >> I'm not a quantum expert, but this stuff seems to make a lot of sense to me -- at least if you are buying the drinks.

      What a Quantum Cubit does, as I've read (and it makes sense in my Quantum imaginations), is it can compute ALL POSSIBLE ANSWERS at one time. When I flip this sheet of paper over, it also has some winning lottery numbers -- also made obsolete by Quantum Computers if you believe the hype -- but not really since all numbers are valid answers.

      But conventional encryption won't work -- but passwords will. All possible solutions are available. .. But the problem is recognizing which one of the possible "solutions" is true. In a password, I would think that there is no right and wrong answer.

      Like if I encrypted this page -- one of the possible solutions would be exactly what I wrote, and perhaps even a thousand "plausible" text messages that I never wrote.

      You would then have to look at the solutions, and guess that it should be english, with at least decent grammar. So your "recognizing engine" is the critical part.

      It doesn't make instantaneous "cracking" of all encryption -- but it does make it many magnitudes easier.

      >> The other issue -- at a guess, is that the "Environment" has more impact on the Cubit. This is going to be many more times effected than simple magnetic media. But part of that could be solved by using multiple cubits and statistically sampling them. Any accidental environmental pollution that "collapses" the quantum computations by "observation" could be factored out. Computing power is CHEAP now -- but errors and erroneuous false "true" answers are your new problem. So you waste computing power to error check a lot more. I would think you'd also want to operate on differently "tuned" quantum materials -- but I guess they'll figure that out when the run into the issue. Don't say I didn't warn you.

      This is about time when you need to pony up some Red Bull to put in my Vodka.

      I think part of the problem is that we still have an old paradigms for Computing. I've thought for some time that the "off/on" bit is mainly a limit of "how" we compute. If we used light, for instance, we could use many overlapping frequencies and gates that sample "hue" or work on one color and not another. Instead of 24 off/on pulses for a character, you could have one value for a word.

      This comes into play with Quantum Computing, because it is solving a "different thing." You still need conventional computing to figure out "which answer." So Douglas Adams was right, the answer is 42 but it takes a bigger computer to figure out what the question was.

      The paper's authors, Lian-Ao Wu and Daniel Lidar of the University of Toronto in Canada, suggest that quantum malware could take on many guises. It might appear in the form of a highly destructive hidden logic gate that flips or erases quantum bits. Maybe it will be a quantum algorithm designed to scramble data in particularly malicious ways. What is certain is that it's coming. "The arrival of quantum malware," they warn, "is a matter of time."

      I think this paper was published, because it could fill a writer's article with something he could understand "scary virus," about a subject that has no chance of getting him in trouble. Vista isn't even out yet ... so there is no PowerPoint for Quantum to test the theory.

      Nothing new there. It all depends upon the Logic and "computing" scientists will do AROUND the Quantum computing -- which I'm guessing at first will just do specific "tricks." Like store lots of data in holes, compute very complicated math quickly, and probably probability. It's all going to be in attacking the software AROUND the quantum bits. So its the LOGIC that will change. Like an encryption would be two algorithms rather than a discrete code. They would have infinite answers along a curve -- so finding the solution(s) would not help. Locking the access to a Quantum computer, when you have other Quantum computers and

      --
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    4. Re:A layman's take on this article by Anonymous Coward · · Score: 0

      The main benefit of quantum computers, as I understand it, is an exponential leap in computing power ...

      I don't think you fully understand that point. It isn't merely a honking increment in computing power, Moore's Law leapfrogged by a few years. For certain questions, a quantum program can try all possible solutions in parallel, and in a small fixed period of time. Questions such as "What password produces the desired response from this security module.

      Now one of the most popular classes of security vulnerabilities are format interpretation errors. For example, when an externally-supplied length field must be less than 14, or a string must not contain metacharacters, but the restrictions are not fully enforced. These can be very subtle, very difficult to spot, and are sometimes not amenable to automated detection.

      Quantum computer have this problem in spades. The input values are not "sharp" Boolean values, but infinitely-flexible quantum states. They have many degrees of freedom: wavelength, momentum uncertainty, polarization, almost invisible internal excitations, spins aligned to ambient magnetic fields, and so forth. It is likely that a clever attacker could prepare quantum data that produces unexpected results when thrown against your security barriers, particularly if the attacker is itself a quantum program running a centimeter away on another part of your computer. So quantum computers will have to control not just how data is used, but the process by which it is created. Security barriers will need to scrub quantum data clean before critical algorithms are run on it.

    5. Re:A layman's take on this article by eyal0 · · Score: 1

      In short: If you had a "quantum hard drive", not only would you be unable to detect the error, if you even tried, you would ruin the data. And the article is still total FUD.

      Let me try a simplified explanation using my limited quantum computing knowledge.

      There are a bunch of parallel universes and every possible thing that could ever possibly happen is going on in one of them right now. (There's a universe in which you run into a wall and go right through it. In university-level physics you can calculate the odds of being in that universe.)

      A regular bit is either 0 or 1 in our universe and almost all other universes. When the value of anything that you can observe is the same in almost all universes, that's called a "sharp" value. There are universes in which you wrote a 1 to your hard drive and got a 0, but the hard drive companies make sure that they're bits act according to classical physics.

      A qubit acts sometimes like that bit when it's value is very "sharp", but sometimes is "unsharp" and carrying 0 in half the universes and 1 in half the universes. (Doesn't have to be a 50-50 split, mind you.) If we take a peek in our universe it's still either 0 or 1.

      Quantum computing takes advantage of the qubit being unsharp and how unsharp it is. But there's no way to know if the qubit is sharp by looking at it, because in our universe it's always either 0 or 1. Worse still, looking at a qubit would make it more sharp in all the universes and ruin your computation.

      How do you detect a virus that changes data in other universes? Still, total FUD.

  17. Windows Uncertainty Principle by Rufty · · Score: 3, Funny

    If I *know* it's got malware, I can't be sure if it's dead or alive...

    --
    Red to red, black to black. Switch it on, but stand well back.
    1. Re:Windows Uncertainty Principle by StarfishOne · · Score: 1

      "Never trust a computer you can't throw out a window."
      - Steve Wozniak ;)

    2. Re:Windows Uncertainty Principle by FusionDragon2099 · · Score: 1

      You'll have to open up your box.

  18. Quantum Norton Antivirus? by Anonymous Coward · · Score: 2, Funny

    Actually, a quantum Norton Antivirus would be easy. Just write a quantum application that doesn't do anything.

    1. Re:Quantum Norton Antivirus? by Pharmboy · · Score: 1

      Actually, a quantum Norton Antivirus would be easy. Just write a quantum application that doesn't do anything.

      But it would have to be very large, and have the ability to slow all the other functions of your computer to less than light speed as well.

      --
      Tequila: It's not just for breakfast anymore!
    2. Re:Quantum Norton Antivirus? by Anonymous Coward · · Score: 0

      No, you have to write program which doesn't do anything, and yet slows your comp to crawl. This may be hard, given the tremendous speed of the quantum machine.

    3. Re:Quantum Norton Antivirus? by Apocalypse111 · · Score: 1

      Not quite - it has to both do nothing AND consume all the resources that you may or may not have (depending on whether you're observing those resources or not).

      --
      There is no mod option "-1: Disagree" for a reason. "Overrated" is not an acceptable substitute. Post something instead.
    4. Re:Quantum Norton Antivirus? by PhxBlue · · Score: 1

      But then how would you know it's not doing anything? It might actually be more useful than NAV.

      --
      !#@%*)anks for hanging up the phone, dear.
  19. Somewhat Offtopic by g1zmo · · Score: 1

    Can anyone point me to some resources for me to learn more about quantum computing and especially quantum computational theory and algorithms?

    --
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    It all comes down to livin' fast or dyin' slow.
    -REK, Jr.
    1. Re:Somewhat Offtopic by exp(pi*sqrt(163)) · · Score: 4, Informative

      What you need to learn about quantum computation is a function of what you know. If you know some mathematics, these are good: Kindergarten Quantum Mechanics and A Concise Introduction.... If you don't, I strongly suggest studying linear algebra, at least until you're 100% happy with tensor products of complex vector spaces, learning basic probability theory and then trying the second paper above.

      --
      Doesn't it make you feel good to know that our freedoms are protected by politicans, lawyers and journalists.
    2. Re:Somewhat Offtopic by cstoner · · Score: 1

      Wow... just thought I'd say: Great articles! I'm taking a course in Quantum Mechanics right now and have been looking for something very much like Kindergarden Quantum Mechanics... To be honest, I never even thought to combine category theory and Quantum Mech.
      /me really needs to start learning more category theory... it tends to pop up in really cool places.

    3. Re:Somewhat Offtopic by exp(pi*sqrt(163)) · · Score: 1

      Category theory is a great language for talking about linear algebra. And, conceptually at least, there really isn't much to quantum mechanics besides linear algebra. States are vectors, time evolution is a linear operator, combining two systems is a tensor product and so on.

      --
      Doesn't it make you feel good to know that our freedoms are protected by politicans, lawyers and journalists.
  20. Future Quantum Nerd Problems by Anonymous Coward · · Score: 2, Funny

    My pr0n-collection has wormholed itself to another dimension :(

    1. Re:Future Quantum Nerd Problems by X-rated+Ouroboros · · Score: 1

      My pr0n-collection has wormholed itself to another dimension :(

      HAWT! Did you get video?
      --
      Simple Machines in Higher Dimensions
  21. A load of crap ? by Joebert · · Score: 2, Funny

    http://en.wikipedia.org/wiki/Quantum_superposition

    I kinda wondered how somthing can be in two positions at once, then I thought about how the water in a toilet spins in different directions on either side of the earth.

    So in a sense, we're basicly looking for a way to get smaller versions of us to flush their toilets when we want them to.
    I guess looking at it like that, malware in quantum computing would be the turds in our toilets that clog them up.

    We must ask the cats, as they have been observing the ways of traveling toilet water for years now.
    Wasn't it the Egyptians that held cats sacred ?
    Perhaps now we know the true reason.

    All hail the cats ! For they shall lead us to the quantum promised land !

    --
    Wanna fight ? Bend over, stick your head up your ass, and fight for air.
    1. Re:A load of crap ? by circumbendibus · · Score: 1

      Brilliant. Cogent. Concise.

      My thanks.

      Also:
      http://www.snopes.com/science/coriolis.htm

    2. Re:A load of crap ? by smiffy1976 · · Score: 1
    3. Re:A load of crap ? by Control+Group · · Score: 1

      I can't help pointing out that water does not, in fact, swirl the "wrong way" on the other side of the equator. The coriolis effect which purportedly causes this is far, far too small a force compared to any other influences (shape of the container, direction the water is sprayed into it, a butterfly in Puerto Rico) to cause this, the Simpsons notwithstanding.

      Where this effect does appear is in large air masses, or perfectly still, shallow pans of water tens of meters across.

      --

      Reality has a conservative bias: it conserves mass, energy, momentum...
  22. Hmmmmm.... by Qubit · · Score: 1

    *tries to look innocent*

    --

    coding is life /* the rest is */
  23. Hacking quantum computers ought to be trivial by Junior+J.+Junior+III · · Score: 2, Funny

    Simply find a parallel universe in which the quantum computer has already been rooted, and use that system to launch DDOU (Distributed Denial of Universe) attacks against the un-compromised quantum-entangled systems residing in nearby parallel universes.

    How are you going to defend against that?

    --
    You see? You see? Your stupid minds! Stupid! Stupid!
  24. Online Banking by Anonymous Coward · · Score: 0

    I thought I might have had enough money in my bank account to retire on but as soon as I got online to check it, my account dissapeared. :(

  25. The future is now? by gumbright · · Score: 1

    "As quantum networking takes off"...WTF? I like to imagine the future as well but come on...

    1. Re:The future is now? by Exocrist · · Score: 1

      We're having a hard enough time getting IPv6 to take off, and here's all of this fuss about quantum networking.

  26. quantum networking by adamofdoom · · Score: 1

    The linked article on quantum networking talks about having to transfer a quantum state to a photon in order to transfer it, but it also says "...quantum entanglement, a spooky property that links particles however far apart they are...." Why not just make quantum networks that transfer using the quantum state directly. It would be faster-than-light networking, like the Ansible in Ender's Game.

    1. Re:quantum networking by TranscendentalAnarch · · Score: 1

      Because while it's possible, it becomes quite difficult over larger and larger distances.

    2. Re:quantum networking by zCyl · · Score: 1
      "...quantum entanglement, a spooky property that links particles however far apart they are...." Why not just make quantum networks that transfer using the quantum state directly. It would be faster-than-light networking,

      First, to entangle two quantum states at a distance the entanglement must be established in a localized interaction after which the particles representing that state can move to a distance. And second, while entanglement links two states at a distance, it does not in any way permit a mechanism for transferring classical information via that entanglement.
    3. Re:quantum networking by adamofdoom · · Score: 1

      Can't you change the quantum state of one and have it instantly effect the other, and just watch the other one for the change? Plus, if you were to make a network like I said, of course you would physically take a particle from one machine to another and then have that machine use it to communicate with the first from there on. But if it doesn't work like that, like you say, then it's a moot point.

  27. Overcoming it the easy way... by Fyre2012 · · Score: 0

    ... just don't look inside the box, whatever you do!

    --
    This is not the greatest .sig in the world, no. This is just a tribute.
  28. I feel dumber for having read that by Tharkban · · Score: 1

    Wow...that was a silly article.

    --
    Tharkban (It is a signature after all)
  29. Qubits??? by HrothgarReborn · · Score: 1

    "calculations on qubits"

    Qubits?? What, are you stuck in the days of Noah? We live in the modern world now. All calulations are done in feet and inches. Get with the times.

    1. Re:Qubits??? by Miseph · · Score: 1

      Feet and inches?? What, are you stuck in the days of Henry I? We live in the modern world now. All calculations are done in meters and centimeters. Get with the times.

      --
      Try not to take me more seriously than I take myself.
    2. Re:Qubits??? by Phroggy · · Score: 1

      My car gets forty rods to the hogshead, and that's the way I likes it!

      --
      $x='S24;r)>63/* h@<5+oZ)32"5cz';$me='phroggy'x$];
      $x=~y+ -xz+\0-Tx+;print$_^chop$me for split'',$x;
  30. As usual the slashdot summary is completely wrong. by Cafe+Alpha · · Score: 1

    There is nothing in the article about hacking quantum computers or networks, it just talks about errors in transmission.

  31. Preprint Malware by Anonymous Coward · · Score: 0

    Let's see if the random swapping of referees will save the scientific Journals from publishing this.

  32. New Scientist is full of stupid by Anonymous Coward · · Score: 0

    Pretty much everything New Scientist ever publishes is either full of misunderstandings or just plain wrong. This article looks to be up to their normal standards of anti-quality.

  33. Quantum computers more vulnerable than normal PCs by 4D6963 · · Score: 1

    In other news, a new study shows that warp drive travel may not be as safe as other means of transportation such as cars or planes.

    --
    You just got troll'd!
  34. Seconded: Article is shit by Shaper_pmp · · Score: 1

    The first link is basically about how if you're encoding quantum states onto photons and sending them down the line, then someone could theoretically scramble or block the communication by inserting a logic gate or polariser somewhere along that line.

    How is this news? You can scramble regular classical communication by cutting the wires or "inserting a logic gate" into the communication process. Hell you can scramble semaphore by inserting a barn in the wrong place.

    What, did the author think because it was all quantum-y it was going to be magically immune to something that amounts to cutting the wires between the two communicators?

    There's nothing interesting, clever or new about stopping or scrambling encrypted communication. Now, if you can decrypt or decrypt-modify-reencrypt, then you're on to something.

    Oh, and:

    "In Wu and Lidar's anti-malware protocol, all the network members share a secret sequence of timings that tell them when the network is live, meaning they can operate their machines and share qubits between them, and when it is idle."

    Right, so it basically slaps a "shared private key" system (with all the problems that brings with it) on top of a quantum-encrypted link. Again, what's all that new here?

    --
    Everything in moderation, including moderation itself