Entries Tagged "crime"

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Computer Security and Liability

Information insecurity is costing us billions. We pay for it in theft: information theft, financial theft. We pay for it in productivity loss, both when networks stop working and in the dozens of minor security inconveniences we all have to endure. We pay for it when we have to buy security products and services to reduce those other two losses. We pay for security, year after year.

The problem is that all the money we spend isn’t fixing the problem. We’re paying, but we still end up with insecurities.

The problem is insecure software. It’s bad design, poorly implemented features, inadequate testing and security vulnerabilities from software bugs. The money we spend on security is to deal with the effects of insecure software.

And that’s the problem. We’re not paying to improve the security of the underlying software. We’re paying to deal with the problem rather than to fix it.

The only way to fix this problem is for vendors to fix their software, and they won’t do it until it’s in their financial best interests to do so.

Today, the costs of insecure software aren’t borne by the vendors that produce the software. In economics, this is known as an externality, the cost of a decision that’s borne by people other than those making the decision.

There are no real consequences to the vendors for having bad security or low-quality software. Even worse, the marketplace often rewards low quality. More precisely, it rewards additional features and timely release dates, even if they come at the expense of quality.

If we expect software vendors to reduce features, lengthen development cycles and invest in secure software development processes, it needs to be in their financial best interests to do so. If we expect corporations to spend significant resources on their own network security — especially the security of their customers — it also needs to be in their financial best interests.

Liability law is a way to make it in those organizations’ best interests. Raising the risk of liability raises the costs of doing it wrong and therefore increases the amount of money a CEO is willing to spend to do it right. Security is risk management; liability fiddles with the risk equation.

Basically, we have to tweak the risk equation so the CEO cares about actually fixing the problem, and putting pressure on his balance sheet is the best way to do that.

Clearly, this isn’t all or nothing. There are many parties involved in a typical software attack. There’s the company that sold the software with the vulnerability in the first place. There’s the person who wrote the attack tool. There’s the attacker himself, who used the tool to break into a network. There’s the owner of the network, who was entrusted with defending that network. One hundred percent of the liability shouldn’t fall on the shoulders of the software vendor, just as 100% shouldn’t fall on the attacker or the network owner. But today, 100% of the cost falls directly on the network owner, and that just has to stop.

We will always pay for security. If software vendors have liability costs, they’ll pass those on to us. It might not be cheaper than what we’re paying today. But as long as we’re going to pay, we might as well pay to fix the problem. Forcing the software vendor to pay to fix the problem and then pass those costs on to us means that the problem might actually get fixed.

Liability changes everything. Currently, there is no reason for a software company not to offer feature after feature after feature. Liability forces software companies to think twice before changing something. Liability forces companies to protect the data they’re entrusted with. Liability means that those in the best position to fix the problem are actually responsible for the problem.

Information security isn’t a technological problem. It’s an economics problem. And the way to improve information technology is to fix the economics problem. Do that, and everything else will follow.

This essay originally appeared in Computerworld.

An interesting rebuttal of this piece is here.

Posted on November 3, 2004 at 3:00 PMView Comments

Schneier: Microsoft still has work to do

Bruce Schneier is founder and chief technology officer of Mountain View, Calif.-based MSSP Counterpane Internet Security Inc. and author of Applied Cryptography, Secrets and Lies, and Beyond Fear. He also publishes Crypto-Gram, a free monthly newsletter, and writes op-ed pieces for various publications. Schneier spoke to SearchSecurity.com about the latest threats, Microsoft’s ongoing security struggles and other topics in a two-part interview that took place by e-mail and phone last month. In this installment, he talks about the “hype” of SP2 and explains why it’s “foolish” to use Internet Explorer.

What’s the biggest threat to information security at the moment?

Schneier: Crime. Criminals have discovered IT in a big way. We’re seeing a huge increase in identity theft and associated financial theft. We’re seeing a rise in credit card fraud. We’re seeing a rise in blackmail. Years ago, the people breaking into computers were mostly kids participating in the information-age equivalent of spray painting. Today there’s a profit motive, as those same hacked computers become launching pads for spam, phishing attacks and Trojans that steal passwords. Right now we’re seeing a crime wave against Internet consumers that has the potential to radically change the way people use their computers. When enough average users complain about having money stolen, the government is going to step in and do something. The results are unlikely to be pretty.

Which threats are overly hyped?

Schneier: Cyberterrorism. It’s not much of a threat. These attacks are very difficult to execute. The software systems controlling our nation’s infrastructure are filled with vulnerabilities, but they’re generally not the kinds of vulnerabilities that cause catastrophic disruptions. The systems are designed to limit the damage that occurs from errors and accidents. They have manual overrides. These systems have been proven to work; they’ve experienced disruptions caused by accident and natural disaster. We’ve been through blackouts, telephone switch failures and disruptions of air traffic control computers. The results might be annoying, and engineers might spend days or weeks scrambling, but it doesn’t spread terror. The effect on the general population has been minimal.

Microsoft has made much of the added security muscle in SP2. Has it measured up to the hype?

Schneier: SP2 is much more hype than substance. It’s got some cool things, but I was unimpressed overall. It’s a pity, though. They had an opportunity to do more, and I think they could have done more. But even so, this stuff is hard. I think the fact that SP2 was largely superficial speaks to how the poor security choices Microsoft made years ago are deeply embedded inside the operating system.

Is Microsoft taking security more seriously?

Schneier: Microsoft is certainly taking it more seriously than three years ago, when they ignored it completely. But they’re still not taking security seriously enough for me. They’ve made some superficial changes in the way they approach security, but they still treat it more like a PR problem than a technical problem. To me, the problem is economic. Microsoft — or any other software company — is not a charity, and we should not expect them to do something that hurts their bottom line. As long as we all are willing to buy insecure software, software companies don’t have much incentive to make their products secure. For years I have been advocating software liability as a way of changing that balance. If software companies could get sued for defective products, just as automobile manufacturers are, then they would spend much more money making their products secure.

After the Download.ject attack in June, voices advocating alternatives to Internet Explorer grew louder. Which browser do you use?

Schneier: I think it’s foolish to use Internet Explorer. It’s filled with security holes, and it’s too hard to configure it to have decent security. Basically, it seems to be written in the best interests of Microsoft and not in the best interests of the customer. I have used the Opera browser for years, and I am very happy with it. It’s much better designed, and I never have to worry about Explorer-based attacks.

By Bill Brenner, News Writer
4 Oct 2004 | SearchSecurity.com

Posted on October 8, 2004 at 4:45 PMView Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.