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The Myths of Security

brothke writes "The Myths of Security: What the Computer Security Industry Doesn't Want You to Know is an interesting and thought-provoking book. Ultimately, the state of information security can be summed up in the book's final three sentences, in which John Viega writes that 'real, timely improvement is possible, but it requires people to care a lot more [about security] than they do. I'm not sure that's going to happen anytime soon. But I hope it does.'" Read on for the rest of Ben's review. The Myths of Security: What the Computer Security Industry Doesn't Want You to Know author John Viega pages 260 publisher O'Reilly Media rating 8 reviewer Ben Rothke ISBN 978-0596523022 summary A contrarian provides an interesting look at the information security industry The reality is that while security evangelists such as Viega write valuable books such as this, it is for the most part falling on deaf ears. Most people don't understand computer security and its risks, and therefore places themselves and the systems they are working in danger. Malware finds computers to load on, often in part to users who are oblivious to the many threats.

Much of the book is made up of Viega's often contrarian views of the security industry. With so much hype abound, many of the often skeptical views he writes about, show what many may perceive are information security truths, are indeed security myths.

From the title of the book, one might think that there is indeed a conspiracy in the computer security industry to keep users dumb and insecure. But as the author notes in chapter 45 — An Open Security Industry, the various players in the computer security industry all work in their own fiefdoms. This is especially true when it comes to anti-virus, with each vendor to a degree reinventing the anti-virus wheel. The chapter shows how sharing amongst these companies is heavily needed. With that, the book's title of What the Computer Security Industry Doesn't Want You to Know is clearly meant to be provocative, but not true-life.

The book is made up of 48 chapters, on various so called myths. Most of the chapter are 2-3 pages in length and tackle each of these myths. The range of topics covers the entire security industry, with topics spanning from various security technologies, issues, risks, and people.

While not every chapter is a myth per se, many are. Perhaps the most evocative of the security myth is chapters 10 — Four Minutes to Infection and chapter 22 — Do Antivirus Vendors Write their own Viruses?. But the bulk of the book is not about myths per se, rather an overview of the state of information security, and why it is in such a state.

In chapter 16, The Cult of Schneier [full disclosure — Bruce Schneier and I work for the same company], Viega takes Schneier to task for the fact that many people are using his book Applied Cryptography, even though it has not been updated in over a decade. It is not fair to blame him for that. While Viega admits that he holds Schneier in high esteem, the chapter reads like the author is somehow jealous of Schneier's security rock star status.

Chapter 18 is on the topic of security snake oil, ironically a topic Schneier has long been at the forefront of. The chapter gives the reader sage advice that it is important to do their homework on security products you buy and to make sure you have at least a high-level understanding of the technical merits and drawbacks of the security product at hand. The problem though is that the vast majority of end-users clearly don't have the technical wherewithal to do that. It is precisely that scenario that gives rise to far too many security snake-oil vendors.

Perhaps the best chapter in the book, and the one to likely get the most comments, is chapter 24 — Open Source Security: A Red Herring. Viega takes on Eric Raymond's theory of open source security that "given enough eyeballs, all bugs are shallow." Viega notes that a large challenge with security and open source is that a lot of the things that make for secure systems are not well defined. Viega closes with the argument that one can argue open versus closed source forever, but there isn't strong evidence to suggest that it is the right question to be asking in the first place.

Overall, The Myths of Security: What the Computer Security Industry Doesn't Want You to Know is good introduction to information security. While well-written and though provoking, the book may be too conceptual and unstructured for an average end-user, and too basic for many experienced information security professionals. But for those that are interested, the book covers the entire gamut of the information security, and the reader, either security pro or novice, comes out much better informed.

While the author makes it clear he works for McAfee, and at times takes the company to task; the book references McAfee far too many times. At times the book seems like it is an advertisement for the company.

Viega does give interesting and often entertaining overviews of what we often take for granted. Some of the books arguments are debatable, but many more are a refreshing look at the dynamic information security industry. Viega has sat down and written his observations of what it going on. They are worth perusing, and the book is definitely worth reading.

Ben Rothke is the author of Computer Security: 20 Things Every Employee Should Know .

You can purchase The Myths of Security: What the Computer Security Industry Doesn't Want You to Know from amazon.com. Slashdot welcomes readers' book reviews — to see your own review here, read the book review guidelines, then visit the submission page.

17 of 216 comments (clear)

  1. The greatest myth of security... by tacarat · · Score: 3, Interesting

    Security does not actually protect you, it delays others. If you don't implement enough delays to allow yourself to find out you're being attacked and to act accordingly, it's all useless.

    --
    "Common sense will be the death of us all"
  2. Most people simply don't think about security by oldspewey · · Score: 4, Insightful

    Lots of friends and family - people who are otherwise thoughtful, intelligent, and clueful - simply don't think about security. That will always be the weak link. You can't "design around" the casual negligence of hundreds of millions of users.

    --
    If libertarians are so opposed to effective government, why don't they all move to Somalia?
    1. Re:Most people simply don't think about security by fuzzyfuzzyfungus · · Score: 4, Insightful

      You might well be able to, actually. You just can't preserve the user's freedom while doing so.

    2. Re:Most people simply don't think about security by cusco · · Score: 3, Insightful

      Wow, just imagine the uproar if M$ tried something like that. I can't think of a single Windows user who wishes that Microsoft controlled access to every piece of hardware or software that would ever plug into a Windows machine, or who would be happy to pay Microsoft for that right. All I can say is, "Wow".

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    3. Re:Most people simply don't think about security by lgw · · Score: 4, Interesting

      Yeah, I think it's pretty well established that you can have good security with software that no one would buy or use by choice. A security model that allows users to be their usual flaky selves and still work reasonably well is what's called for. Hopefully people will focus on that, instead of the myth of the "educatable user".

      Limiting what individual pieces software can do, rather than what the user can do, is key. Admin/root acount vs normal account is a first step, but no where near a last one, as it still requires too much user smarts. SE Linux's per-process finely-detailed jails is a great further step, but fails because it depends on a known good source of software, and only installing from there. Taking a few more steps in this direction would be real research, and profoundly improve computer security.

      Thinking that the answer is to improve the user instead of the system only makes sense from a religious perspective (and even them, half the religions would disagree that this is possible).

      --
      Socialism: a lie told by totalitarians and believed by fools.
  3. Common Problem by SilverHatHacker · · Score: 3, Insightful

    Security is only one of many issues that could be vastly improved if people cared more than they currently do.

    --
    Funny may not give karma, but +5 Informative never made anyone snort coffee out their nose.
    1. Re:Common Problem by bberens · · Score: 3, Insightful

      I'm sure I'll be modded down for this, but I don't see why a company or person SHOULD concern themselves more with security than they do currently. A simple cost/benefit analysis of what it actually entails to become "secure" shows that it's simply not worth it. It's the same math that goes into determining whether to do a vehicle recall and whether or not to install a home security system. If you look at it in those terms, you'll see we're dramatically over-spending on security.

      And yet... I'm often considered paranoid by my peers (IT and otherwise) with respect to my personal information.

      --
      Check out my lame java blog at www.javachopshop.com
  4. Re:Myths of Security? by mcgrew · · Score: 5, Funny

    There are no myth's of security

    Sorry, but I'm going to have to send you to Bob's office.

  5. My Cheap and fullproof method by Anonymous Coward · · Score: 5, Funny

    See, I have no security. Anyone can access my data. Folks come across the data and think, "There's no security. This can't be real!" I throw in some names like "Dick Hertz, Harry P. Ness, Mike Hunt, Haywood Jablowme, etc..." and the data thieves think it's bogus.

    I call it "Security through rudenss."

  6. Most SHOULD NOT think about security... by nweaver · · Score: 4, Interesting

    It is a great failing in our industry that its viewed as a problem that "most don't think about security".

    Rather, the problem is that we haven't constructed systems such that people don't have to think about security. The best security systems are so unobtrusive and unnoticable that people should not think about them.

    EG, a good succes story is the modern car key. 10-20 years ago, it was trivial to steal a car. You break the steering lock, put two wires together, and drive off. We had horrible cludges like "the Club", and people had to think all the time about it, in theory.

    Now our carkeys have RFID transponders which are cryptographically keyed to the car's computer. It is vastly harder to steal a modern car (either bring a tow truck or swap the computer), but the actual cognitive load for most people is vastly less. You do the same thing you did before, but now your new car is far more secure.

    --
    Test your net with Netalyzr
    1. Re:Most SHOULD NOT think about security... by fuzzyfuzzyfungus · · Score: 3, Insightful

      On the minus side, while your car may be safe, having to get one of the keys replaced will make you feel like your wallet has been stolen. Obviously, that isn't intrinsic to the technology, a similar system could have been implemented as a cheap industry standard; but that moment of technological change(while it did increase security) also allowed the vendors to strengthen their positions.

  7. Thanks! by viega · · Score: 5, Interesting

    Ben, Thanks for the positive review. I know the book has pissed some people off, especially when I take on their particular sacred cows (e.g., intrusion detection). But, the Schneier chapter isn't meant to piss him off, I have no beef with him whatsoever. I just think the fanboys do the world a disservice by not thinking for themselves, especially when they draw from material that's a decade old. John

    1. Re:Thanks! by kevjava · · Score: 4, Insightful

      But, the Schneier chapter isn't meant to piss him off, I have no beef with him whatsoever. I just think the fanboys do the world a disservice by not thinking for themselves, especially when they draw from material that's a decade old.

      The thing is, you're not convincing me that the book is out of date. There is plenty of material in the Internet that is over a decade old and is still relatively current. I read the Cathedral and the Bazaar for the first time last month, and drew a good amount of benefit from its words, even if I'm not ready to swallow it whole. The Mythical Man Month shed quite a bit of perspective on project management in a field that our industry has fifty or so years of experience in, and yet we still do terribly at.

      The principles of cryptography are still the same today as they were in the days of the Roman Empire and the Caesar Cipher, with all the bits about Alice and Bob with Mallory in the middle. Our toys are much more advanced today, and their rate of advance continues to increase, but just what is it that makes our pulling of information from a 10+-year-old book harmful?

      I'm no Schneier "fanboy", and haven't actually read the book; I just genuinely want to know.

  8. It can protect you by davidwr · · Score: 5, Insightful

    If it raises the cost of hurting you to higher than the adversary is willing to spend, it protects you.

    The trick is knowing how much security is worth paying for.

    If the adversary is willing to spend $1000 to attack you, and you have to spend $100 a month to raise the cost of an attack to $1001, and if a successful attack will cost you $1 and the number of successful attacks will be 1 per decade because face it, you don't have much to offer, then it's not cost-effective. On the other hand, if an adversary is willing to spend the same $1000 and it will cost you the same $100 a month to make yourself too expensive to attack, but each breach will cost you $500 and there will be about 1 breach per month if you don't invest, then suddenly things look different.

    --
    Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
  9. Re:I have a full-proof security code by cheros · · Score: 3, Interesting

    Actually, during the last Access-all-areas held in London I brought along a Samsonite briefcase with a digital lock.

    Someone spent the ENTIRE weekend trying to open the lock and didn't manage, which was due to a bit of evil from my side. The lock has 4 digits, so I entered a code and opened/closed it - he tried everything from 0000 to 9999 and didn't manage.

    The reason was me pretending to press keys. That case had a cute feature: you didn't have to use all 4 digits, so the actual combination was just "9" with me pretending to hit other buttons :-)

    Ah, those where the days..

    PS: that lock had a major weakness anyway so I didn't use it long - it was just amusing..

    --
    Insert .sig here. Send no money now. Owner may sue, contents will settle. Batteries not included.
  10. Re:Myths of Security? by Forge · · Score: 3, Insightful

    There are no myth's of security, just the myth of security itself. Modern computer security is based on the fact that their are algorithms that no one knows how to reverse quickly. Doesn't mean that they can't be reversed however...

    I disagree.

    There are many security myths that have made it into company policy etc...

    For-instance the idea that forcing all staff in a mid sized to large company to update their passwords every months or two is somehow more secure than allowing them to keep the same password indefinitely.

    In practice, this causes them to use simpler passwords that just barely make whatever limits are imposed (I.e. a single number and one capital letter) and to rotate throgh slight modifications of this weak password.
    Password#1
    Password#2
    Password#3

    Etc...

    Or worse yet. Some just write down the password in a place that's easy to find.

    As for those Algorithms. Sure they can be broken. As long as you update them faster than the old ones are broken you should be fine. What bugs me though is when a single bug in an OS is exploited by a thousand different bits of malware and instead of fixing the bug we have a dozen antivirus vendors producing a detector for each of the thousand bits of malware.

    --
    --= Isn't it surprising how badly I spell ?
  11. What *they* don't want you to know! by luddite47 · · Score: 3, Interesting

    How many books have this stupid subtitle?
    It must work...