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Location-Based Encryption

davidwr writes "Eweek reports Apple co-founder Steve Wozniak has a new way to prevent theft of company secrets on stolen laptops: 'Wozniak offered a peek into his vision for the company on Ziff Davis Media's Security Virtual Tradeshow, where he introduced "wOz Location-Based Encryption," an application that uses GPS tracking within a wireless hub to encrypt and decrypt sensitive data for large businesses.' Today's encryption is good enough but I do like the tracking capability. Imagine your laptop screaming 'I'm being stolen! I'm being stolen!' and paging security as the janitor walks out the door with it."

38 of 239 comments (clear)

  1. Not totally secure? by nmg196 · · Score: 5, Insightful

    All GPS devices I've come across simply stream out NMEA data from a serial port (or over a bluetooth connection). What would stop someone that really desperate to get the data from hacking the GPS module or the dongle so they can stream in their own forged (or recorded) NMEA data which reports the laptops current position to be where they stole it from (after all, they should remember)? Usually anything these days that requires a GPS uses a standard GPS module, and at some stage, the position data from it ends up in an interceptable form on the edge interface of some module. Hardly bulletproof security?

    1. Re:Not totally secure? by jmcmunn · · Score: 4, Interesting


      Better yet, my portable GPS device allows me to "set my location" temporarily in case the signal is not strong enough. This allows the device to at least estimate where I am if it has a weak signal somehow. I don't really get all the details...but it works so I don't complain.

      So what's to stop someone from doing essentially the same thing with the laptop? Just tell it "you're still in the building" and you'd be all good. I think this is a pretty cheesy idea for security, you can always figure out a way to lie to a machine, regardless of what lie you're telling. This is less secure than a well-encrypted password if you ask me, or course I assume that the machine would still have the password as added security, so I guess that argument shouldn't carry any weight.

    2. Re:Not totally secure? by nmg196 · · Score: 5, Informative

      > This allows the device to at least estimate where I am if it
      > has a weak signal somehow. I don't really get all the details...
      > but it works so I don't complain.

      Well a GPS receiver has about 8-12 channels with which to look for the satellites. If it knows roughly where you are, then it can use that information, together with stored almanac data (info relating to the orbital positions of the satellites over time) in order to better guess *which* satellites it should try locking on to. It basically speeds up the process of getting the all important 'first fix'. If you didn't tell it where it was, it would simply take longer to get the fix - but it would still get there eventually.

      I must admit, I wasn't too impressed when I received my first GPS and the very first question it asked me when I turned it on is "Please select the location of this device using the map below". I was like, "huh, aren't you supposed to tell me that?!". :)

    3. Re:Not totally secure? by stupidfoo · · Score: 5, Funny

      When a laptop screams 'I'm being stolen! I'm being stolen!' and no one can here it, is it really making noise?

    4. Re:Not totally secure? by Psiolent · · Score: 2, Interesting

      I work for a company that makes it so you CAN hear it. It doesn't use GPS, but instead proprietary wireless receivers placed throughout a facility. If a marked asset (such as a laptop) leaves a predefined area, it initiates an alarm. Our software does, in fact, scream "I'm being stolen", or whatever you want, via text-to-speech over the facility's walkie-talkies.

      We don't do location based encryption, like Woz, but we will scream at you if your laptop is being stolen.

      See our asset theft detection here.

    5. Re:Not totally secure? by nmg196 · · Score: 2, Funny

      Sorry - I've just watched Finding Nemo and those turtles must have really got to me :)

    6. Re:Not totally secure? by Mr+Guy · · Score: 3, Funny

      Don't appologize. It's not your fault you were using slang that actually does mean what you were trying to convey. I'm assuming didn't actually speak to the device, correct?

      So in other words, you inclined to feel as though the machince should be telling you. Or perhaps your feelings could be described as resembling the emotions that sentence expressed. I think you'll find that's what the word like means, regardless of whether that's an encouraged sentence structure.

      If you feel I'm wrong, explain to me what's fundamentally different about the following sentences, besides using a sentence to describe the feeling instead of direct simile:

      I was like a cloud.
      It was like a state of total weightlessness.
      It made me feel like I buzzing around.
      I was like, "Wow, I'm a cloud".

  2. Or other more malign actions by _the_bascule · · Score: 5, Funny
    paging the boss, 'he's going home! he's going home!'

    --
    Our diversity is our strength
  3. Alarms by Anonymous Coward · · Score: 5, Funny

    What if they had that for cars? Imagine someone tries to steal one and an alarm goes off! Everyone will pay attention and call the police right away. Car theft will be a thing of the past for sure...

  4. Does not work for cars too well by mi · · Score: 2, Interesting
    Automobiles had various "I'm being stolen" devices for years. From overt obnoxious sirens, that wake up the neighborhoods in the middle of the night to covert "Lo-Jack" and others. Does not help as much as was, I bet, expected.

    Or does it?

    --
    In Soviet Washington the swamp drains you.
  5. This could be applied to other things as well by uid100 · · Score: 3, Interesting

    Some though would have to be applied to this, but a GPS system in your car that alerts you if some operational parameters are crossed would be nice.

    "Hey, I'm being towed away from the parking garage, even though my keys are more than 100 yards from me"

    --
    ...yup...
  6. Zztxt Flrqtp fnz p47eltnzd. by mothz · · Score: 4, Funny

    Zztxt Flrqtp fnz p47eltnzd.

    Oh, I'm sorry, you need to move two steps to the left.

  7. Do you keep your laptop solely in the office? by mpathetiq · · Score: 5, Insightful

    It seems like the real risk would be when you are on-site, traveling, etc. As a consultant, my laptop never leaves my side. I'd hate to have to "check out" every time I left the building. Also, I don't think I would like my employer having the possibility of tracking my every movement. Sure, you could turn off the tracking, but then you've lost the security as well.

  8. In other news... by al_fruitbat · · Score: 2, Interesting

    ...thieves put stolen laptops in bags lined with aluminium foil. (can also be used for hats)

  9. Um.. by Daniel+Boisvert · · Score: 2

    Does anybody else see a problem with a laptop you can't use outside of the office?

    It's not like you'd buy a laptop so you could TAKE IT WITH YOU and work outside of the office, or anything..

  10. Shut Down? by ZZeta · · Score: 5, Insightful

    Ok, may be I'm missing something, but wouldn't a simple shut down get rid of this 'feature'?

    And before you tell me how you can't shut it down without the apropriate password: Unplug / get rid of the battery. If you're stealing the notebook, why would you mind turning it off? After all, there'll be plenty of time back home to retrive the data.

    1. Re:Shut Down? by KiloByte · · Score: 2, Insightful

      Simple. Just have your server ping the laptop every second and launch an alarm if the connection goes down.

      Unless you knowingly turn the watchdog off, I can't see a way to work around this that doesn't involve meddling with the server or alarm -- if you use some secure ping like choosing a random number and running some private key cryptographic tool on both ends.

      --
      The creatures outside looked from Alt-Right to Antifa; but already it was impossible to say which was which.
  11. I can see the error messages now... by Elphin · · Score: 3, Funny

    Error! Unable to open file!

    In order to open this file you must move 3 metres northwest of your present position

  12. British intelligence and self-destructo laptops by call+-151 · · Score: 5, Informative

    This has come up before- here is a link to a 2001 Wired article about the British intelligence services using laptops with ``a built-in electronic self-destruct mechanism that erases a laptop's hard drive if the case is opened by force'' when a code is forgotten, as well as ``a tracking feature that allows a computer gone astray to call home." This was after a spate of embarrassing episodes where laptops with lots of important info went missing. I don't know if it's been implemented but this does seem to have some interesting applications, potentially...

    --
    It's psychosomatic. You need a lobotomy. I'll get a saw.
  13. For a laptop? by 31415926535897 · · Score: 2, Insightful

    I was always under the impression that laptops were supposed to be mobile (but maybe that's just me)...

    It seems like this would be more useful for company systems that have highly proprietary, sensitive data on them that you wouldn't want moving around. I could see a very nice, dual G5 screaming "I'm being stolen" as the janitor carts it out with his supplies (though how it does that without a power source is beyond me, I guess you would need a secondary power source just for this system).

    Also, and I'm really not trying to start a flame war here, but first, what's wrong with a janitor having a laptop, and why assume that it's a janitor stealing the laptop? I would guess that it's a disgruntled employee or just-fired employee (that's not properly escorted out) that would pull a stunt like that. And I would think that laptops are stolen from public places like libraries and parks rather and work places where I think a system like this might not be as useful.

  14. Quote from article by ender1598 · · Score: 2, Insightful

    "Throughout the entire process, Wozniak said the encryption key is controlled in a central location through a secure transmission. Because the wOz Platform and the wOzNet network are proprietary, he said it is not open to Wi-Fi spoofing or password sniffing."

    proprietary != secure from sniffing

    I wonder if it's based on the current wireless encryption or if it's something completely new.

    --
    There are 10 kinds of people in the world; those that understand binary and those that do not.
  15. Thinkpads and RFID by terrencefw · · Score: 4, Informative

    IBM Thinkpads have had RFID in them for a while now, to prevent them being taken out of specific areas.

    --
    Like tinyurl, but one letter less! http://qurl.co.uk/
  16. Why must it always be "the janitor"?? by gambit3 · · Score: 3, Insightful


    A few years ago, a securtity head-honcho at my company gave a presentation about keeping confidential documents off our desks, because "you never know when the janitors can come in and just swipe it out with them. I know they don't speak Englis, but it doesn't take a lot to swipe stuff off a desk..."

    I've had my fair share of stuff stolen, and it's never been a janitor.

    1. Re:Why must it always be "the janitor"?? by Jucius+Maximus · · Score: 2
      "A few years ago, a securtity head-honcho at my company gave a presentation about keeping confidential documents off our desks, because "you never know when the janitors can come in and just swipe it out with them. I know they don't speak English, but it doesn't take a lot to swipe stuff off a desk...""

      It's easy to blame the person who's not in the room. Why do you think they blame the project's current problems on the person who jumped ship and left the company?

      And FWIW, there were only two occasions I know of where things were stolen from an office where I worked or visited. One of them (involving the theft of the database peoples' candy/cookie stock) was never solved as far as I know. The other one (involving the theft of computer equipment) was conclusively traced to a person on the custodial staff. This person was hired on Tuesday, a thief on the Wednesday, and fired on the Thursday.

    2. Re:Why must it always be "the janitor"?? by nels_tomlinson · · Score: 2, Insightful
      I've had my fair share of stuff stolen, and it's never been a janitor.

      I don't think I've ever had anything stolen at the office. I've been a janitor, too.

      If the janitors think they have a soft job with high pay, they aren't going to jeapordize it by stealing a laptop or a paper off your desk.

      If they figure that they wouldn't get screwed any worse elsewhere, I guess the situation would be different.

      The point here is that the janitors are just like you: if they're feeling screwed, they are a lot more likely to compromise their personal standards when tempted. Bear in mind that your excellent employer may contract janitorial services from a contractor who screws his employees.

    3. Re:Why must it always be "the janitor"?? by deletedaccount · · Score: 2, Funny

      Why must it always be "the janitor"?? It's not always the janitor, sometimes it's the butler instead.

    4. Re:Why must it always be "the janitor"?? by Inda · · Score: 3, Interesting

      In my place the high paid engineers do all the stealing of laptops. The rest of us don't have access to them...

      They take them home to do work in the evenings. They dial into the network for free internet. Their kids download Britney. Their begged CD burner is constantly burning audio CDs - they have to beg because there is no real reason for laptops having burners...

      ...they find out that they are unable to install latest_spyware_infested_program. They wipe the hard drive, install their own software (disabling dial-in in the process) and the laptop never sees the office again. They know they'll have a lot of explaining to do if the laptop ever needs rebuilding.

      They see it as one of the perks of the job.

      --
      This post contains benzene, nitrosamines, formaldehyde and hydrogen cyanide.
  17. GPS spoofing by Mordac+the+Preventer · · Score: 2

    So... how easy is it to spoof a GPS signal?

    --
    SteveB.
  18. "Unplug / get rid of the battery" by da5idnetlimit.com · · Score: 3, Informative

    True, very true...

    Also one should note that in most cases, when someones steals a laptop, it is for the laptop itself, and they couldn't care less for the data on it...as long as they can download the corresponding drivers later on...

    One the laptop get sold, it'll suffer a quick reinstall. and the security dongle will become a nice high tech keychain 8)

    + This system assumes I have a physical access to the machine...

    If I have physical access to the machine (usually you find them plugged into the network, and no screensaver password...) all I have to do is either install a quick soft from the net or from the cd/usb key I have with me...

    Keylogger/bot/zombie/spyware/remote desktop... I can do whatever I want...and your security is breached...

    --
    It takes 40+ muscles to frown, but only four to extend your arm and bitchslap the motherfucker
  19. Reliable GPS *INDOORS*??? by rwyoder · · Score: 2, Insightful

    I've been playing with a high-end GPS device recently, and the first thing I learned was that you can forget about getting a reading indoors. So how will this device work when there is no GPS reading in the office???

  20. Re:w0z is a nutjob at best... by erikharrison · · Score: 4, Interesting

    Wozniac is a nutjob no doubt about it. He'd still be a legend, though, even if it weren't for Apple. He was an early phreaker, and a good friend of John Draper - Cap'n Crunch for gods sake! He was an important figure in the Silicon Valley hobbyist community, and even if he hadn't done either Apple or phreaking he'd still be a footnote in the big book of commodity PCs because of that. Certainly more than you or I can claim.

    He and Jobs didn't start their relationship selling computers together - they originally sold blue boxes. Woz still works for Apple, mostly as a consultant, and he and Jobs still collaborate (though Woz has claimed that on many occasions Jobs credits him with ideas that he had minimal participation in).

    Since leaving Apple he's been as much a humanitarian with his skills and money as Bill Gates (though in smaller absolute amounts). He personally provides free tech support for the local school system, and (at least when System 8 was still cutting edge) held computer classes for preschool and elementary school kids. He's sponsered charity concerts, and more.

    Problem with Wozniak is he has a great technical mind, a wonderful sense of playfulness, and even a good sense of what users want in products, but his business sense is poor. That's why there hasn't been as much output from Woz since leaving Apple - their hasn't been a Steve Jobs. Wozniak was the Paul Allen to Job's Bill Gates, and much like Allen, Wozniak has dabbled here and their, with no truly successful financial venture yet. That doesn't mean he's worthless

  21. GPS and Signal. by jellomizer · · Score: 2, Insightful

    With my experience with GPS. They tend not to get a signal unless you are outside and have a clear view of the sky. When Driving in tunnals, or a road with a thick covarage of trees I tend to loose signal. And I have never got it to work while I was inside my apartment. Most people tend to use Laptops inside buildings and a lot of them are not nessarly near windows or have the window shades open (the heat of an afternoon sun in summer is pritty bad). So for most cases this will not work because they cannot get a GPS signal.

    --
    If something is so important that you feel the need to post it on the internet... It probably isn't that important.
  22. good against wardriving by spectrokid · · Score: 2, Interesting

    Imagine that your WEP gets encrypted with a key dependent on your location. A large company could enable campus-wide WIFI, but you would only be able to get on the network if you are inside one of the buildings. Not the ultimate protection, but one extra barrier.

    --

    10 ?"Hello World" life was simple then

  23. Better idea - wireless hardware key-pair by Se7enLC · · Score: 2, Interesting

    I have a better idea - you build a pair of hardware keys that operate like rfid ID tags, sort of (except that the key would be battery powered and generate different keys based on what it was given for a timestamp - like a secureID card for a vpn).

    You'd hang one of these little devices off your belt or on your keys or something. When the laptop is within a few feet of you, you can access the encrypted data. When it's not, you can't. Seems simple enough....now we just have to make sure that nobody gets smart and tapes the device to the laptop (or packs it in their laptop bag).

  24. Stop! by buss_error · · Score: 3, Interesting
    'I'm being stolen! I'm being stolen!' and paging security as the janitor walks out the door with it."

    I've been in offices for many many years. There has been only one time the Janitor Did It, and it was a case of they put it somewhere we wern't expecting.

    Can we stop with the steriotype? All of the janitors I have known have been honest, hardworking people that are just trying to make a living. While I a sure there are dishonest janitors around, I sure that like anywhere else the vast majority are not crooks.

    --
    Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves.
    1. Re:Stop! by rthille · · Score: 2, Interesting

      I don't know that the use of the janitor is meant as an inditement of janitors and their honesty, but rather of society. The reason that janitors are used is because they have opportunity (because they have to to clean) and and due to the inequity in society they can be said to have motive. After all, when you're working around equipment that costs as much as you make in a year, there's more temptation to steal it than if you work around stuff that costs what you make in a day. It's the same reason why people who drive expensive cars don't feel comfortable parking their car in a poor neighborhood.
      But you're right, statistically, it's the employee making $80k who thinks he should be making $120k, rather than the janitor making $10k

      --
      Awesome furniture, accessories and cabinetry in Santa Rosa, CA: http://humanity-home.com/
    2. Re:Stop! by TomorrowPlusX · · Score: 3, Informative

      Not to mention that janitors -- being blue collar and generally lower on the social totem pole -- *know* they're the first to be suspected/fired when something goes missing.

      Generally speaking the theives are coworkers, with sticky fingers. But usually it's people -- dressed nicely -- who just walk in off the street, looking like they belong, and picking something up and quietly taking off.

      We've had a fair bit of the latter where I work.

      --

      lorem ipsum, dolor sit amet
  25. GPS indoors? by uqbar · · Score: 2, Informative

    I have a 1st generation GPS device so maybe my info is out of date, but it has a hard time getting a location in heavy forest, never mind in a massive concrete and steel building. All this seems like it would rule out most real world applications, so I think something is missing in this story - Woz aint no dummy. Any conjectures?