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Thomas Rid on cyber war

by on September 3, 2013 · 0 comments

Thomas Rid, author of the new book Cyber War Will Not Take Place discusses whether so-called “cyber war” is a legitimate threat or not. Since the early 1990s, talk of cyber war has caused undue panic and worry and, despite major differences, the military treats the protection of cyberspace much in the same way as protection of land or sea. Rid also covers whether a cyber attack should be considered an act of war; whether it’s correct to classify a cyber attack as “war” considering no violence takes place; how sabotage, espionage and subversion come into play; and offers a positive way to view cyber attacks — have such attacks actually saved millions of lives?

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CISPA’s Vast Overreach

by on April 17, 2013 · 5 comments

Last summer at an AEI-sponsored event on cybersecurity, NSA head General Keith Alexander made the case for information sharing legislation aimed at improving cybersecurity. His response to a question from Ellen Nakashima of the Washington Post (starting at 54:25 in the video at the link) was a pretty good articulation of how malware is identified and blocked using algorithmic signatures. In his longish answer, he made the pitch for access to key malware information for the purpose of producing real-time defenses.

What the antivirus world does is it maps that out and creates what’s called a signature. So let’s call that signature A. …. If signature A were to hit or try to get into the power grid, we need to know that signature A was trying to get into the power grid and came from IP address x, going to IP address y.

We don’t need to know what was in that email. We just need to know that it contained signature A, came from there, went to there, at this time.

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[I]f we know it at network speed we can respond to it. And those are the authorities and rules and stuff that we’re working our way through.

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[T]hat information sharing portion of the legislation is what the Internet service providers and those companies would be authorized to share back and forth with us at network speed. And it only says: signature A, IP address, IP address. So, that is far different than that email that was on it coming.

Now it’s intersting to note, I think—you know, I’m not a lawyer but you could see this—it’s interesting to note that a bad guy sent that attack in there. Now the issue is what about all the good people that are sending their information in there, are you reading all those. And the answer is we don’t need to see any of those. Only the ones that had the malware on it. Everything else — and only the fact that that malware was there — so you didn’t have to see any of the original emails. And only the ones that had the malware on it did you need to know that something was going on.

It might be interesting to get information about who sent malware, but General Alexander said he wanted to know attack signatures, originating IP address, and destination. That’s it.

Now take a look at what CISPA, the Cybersecurity Information Sharing and Protection Act (H.R. 624), allows companies to share with the government provided they can’t be proven to have acted in bad faith:

information directly pertaining to—

(i) a vulnerability of a system or network of a government or private entity or utility;

(ii) a threat to the integrity, confidentiality, or availability of a system or network of a government or private entity or utility or any information stored on, processed on, or transiting such a system or network;

(iii) efforts to deny access to or degrade, disrupt, or destroy a system or network of a government or private entity or utility; or

(iv) efforts to gain unauthorized access to a system or network of a government or private entity or utility, including to gain such unauthorized access for the purpose of exfiltrating information stored on, processed on, or transiting a system or network of a government or private entity or utility.

That’s an incredible variety of subjects. It can include vast swaths of data about Internet users, their communications, and the files they upload. In no sense is it limited to attack signatures and relevant IP addresses.

What is going on here? Why has General Alexander’s claim to need attack signatures and IP addresses resulted in legislation that authorizes wholesale information sharing and that immunizes companies who violate privacy in the process? One could only speculate. What we know is that CISPA is a vast overreach relative to the problem General Alexander articulated. The House is debating CISPA Wednesday and Thursday this week.

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Internet Security Concerns, Online Anonymity, and Splinternets

by on February 15, 2009 · 31 comments

What would it take to create a more secure Internet?  That’s what John Markoff explores in his latest New York Times article, “Do We Need a New Internet?”  Echoing some of the same fears Jonathan Zittrain articulates in his new book The Future of the Internet, Markoff wonders if online viruses and other forms of malware have gotten so out-of-control that extreme measures may be necessary to save the Net.  Compared to when cyber-security attacks first started growing over 20 years ago, Markoff argues that:

[T]hings have gotten much, much worse. Bad enough that there is a growing belief among engineers and security experts that Internet security and privacy have become so maddeningly elusive that the only way to fix the problem is to start over.

Like many others, Markoff fingers anonymity as one potential culprit:

The Internet’s current design virtually guarantees anonymity to its users. (As a New Yorker cartoon noted some years ago, “On the Internet, nobody knows that you’re a dog.”) But that anonymity is now the most vexing challenge for law enforcement. An Internet attacker can route a connection through many countries to hide his location, which may be from an account in an Internet cafe purchased with a stolen credit card. “As soon as you start dealing with the public Internet, the whole notion of trust becomes a quagmire,” said Stefan Savage, an expert on computer security at the University of California, San Diego.

Consequently, Markoff suggests that:

A more secure network is one that would almost certainly offer less anonymity and privacy. That is likely to be the great tradeoff for the designers of the next Internet. One idea, for example, would be to require the equivalent of drivers’ licenses to permit someone to connect to a public computer network. But that runs against the deeply held libertarian ethos of the Internet.

Indeed, not only does it run counter to the ethos of the Net, but as Markoff rightly notes, “Proving identity is likely to remain remarkably difficult in a world where it is trivial to take over someone’s computer from half a world away and operate it as your own. As long as that remains true, building a completely trustable system will remain virtually impossible.”  I’ve spent a lot of time writing about that fact here and won’t belabor the point other than to say that efforts to eliminate anonymity for the entire Internet would prove extraordinarily intrusive and destructive — of both the Internet’s current architecture and the rights of its users.  There’s just something about a “show-us-you-papers,” national ID card-esque system of online identification that creeps most of us out. That’s why I spend so much time fighting age verification mandates for social networking sites and other websites; it’s the first step down a very dangerous road.

But what if we could apply such solutions in a narrower sense?  That is, could we create more secure communities within the overarching Internet superstructure that might provide greater security?  Markoff starts thinking along those lines when he suggests… Continue reading →

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