The Fear-Based Psychology of the "Internet Kill Switch"

If the Internet ever does something unfriendly to the national security interests of the United States, what if the president of said Union could pick up a cold war-era style phone - or maybe whip out an iPhone pre-loaded with a custom "kill the internet" app - and order that it be shut down?

That's what activists are saying is one potential outcome of the Protecting Cyberspace as a National Asset Act. The so-called "Internet Kill Switch" is not actually an outcome of that bill, by the way - some commentators have compared this meme to the "death panels" myth that almost derailed the healthcare bill.

But the fact remains that the president has broad power under the 1934 Telecommunications Act to restrict "wire communications" during a time of war - and that includes the Internet. So even under existing laws, an off switch for the United States' most important information conduit is, in theory at least, only one over-eager lawmaker in chief away from reality.

Paul Kocher, current CEO of Cryptography Research, is a legend in the field of security - one of the engineers behind SSL 3.0 and an innovator in a host of other areas. Recently I interviewed him on the subject; here's what he had to say about the so-called "Internet Kill Switch."

Lot of tasks - if you ever flipped a switch on that

"Networks like internet are critical for a lot of tasks - if you ever flipped a switch on that, you'd cause tremendous amounts of harm. It's unclear you'd get any particular benefit from doing that."

"The idea that people can kill the technology if they wish to makes people feel reassured that the technology won't go rogue in some way. If you had an army of robots walking around you'd like to have switch to turn them off - people still have that concept of the Internet."

Attemps to degrade the quality of civilian GPS signals shows that disabling communications networks hurts the good guys more than it hurts the bad guys.

The entire Internet

"You could conceivably come up with ways to bring down the entire Internet, by playing games with BGP protocol or bringing down the entire DNS archicecture. But you can't stop a pinpointed attack with this.... If you had a kill switch you'd either shut down entire internet or achieve nothing.

"Everybody working from home: gone. Everybody's [VoIP] phone connection: gone. Everybody's website: gone. That's the only binary choice you can really achieve with this."

"The government has had some misleading experience with this area, with telephone switches where there are requirements that there be backdoors so law enforcement can do wiretaps and eavesdrop on calls. But there's a lot more homogeneity in telephone infrastructure than within the packet-switched internet infrastructure.