Sometimes mediocre encryption is better than strong encryption, and sometimes no encryption is better still.
The Wall Street Journal reported this week that Iraqi, and possibly also Afghan, militants are using commercial software to eavesdrop on U.S. Predators, other unmanned aerial vehicles, or UAVs, and even piloted planes. The systems weren’t “hacked” — the insurgents [...]
Sometimes mediocre encryption is better than strong encryption, and sometimes no encryption is better still.
The Wall Street Journal reported this week that Iraqi, and possibly also Afghan, militants are using commercial software to eavesdrop on U.S. Predators, other unmanned aerial vehicles, or UAVs, and even piloted planes. The systems weren’t “hacked” — the insurgents [...]
Last year, I wrote about the increasing propensity for governments, including the U.S. and Great Britain, to search the contents of people’s laptops at customs. What we know is still based on anecdote, as no country has clarified the rules about what their customs officers are and are not allowed to do, and what [...]
A couple of years ago, the Department of Homeland Security hired a bunch of science fiction writers to come in for a day and think of ways terrorists could attack America. If our inability to prevent 9/11 marked a failure of imagination, as some said at the time, then who better than science fiction [...]
In the United States, the concept of “expectation of privacy” matters because it’s the constitutional test, based on the Fourth Amendment, that governs when and how the government can invade your privacy.
Based on the 1967 Katz v. United States Supreme Court decision, this test actually has two parts. First, the government’s action can’t contravene an [...]
An employee of Whole Foods in Ann Arbor, Michigan, was fired in 2007 for apprehending a shoplifter. More specifically, he was fired for touching a customer, even though that customer had a backpack filled with stolen groceries and was running away with them.
I regularly see security decisions that, like the Whole Foods incident, seem [...]
You might not have realized it, but the next great battle of cryptography began this month. It’s not a political battle over export laws or key escrow or NSA eavesdropping, but an academic battle over who gets to be the creator of the next hash standard.
Hash functions are the most commonly used cryptographic primitive, and [...]
You might not have realized it, but the next great battle of cryptography began this month. It’s not a political battle over export laws or key escrow or NSA eavesdropping, but an academic battle over who gets to be the creator of the next hash standard.
Hash functions are the most commonly used cryptographic primitive, and [...]
Quantum cryptography is back in the news, and the basic idea is still unbelievably cool, in theory, and nearly useless in real life.
The idea behind quantum crypto is that two people communicating using a quantum channel can be absolutely sure no one is eavesdropping. Heisenberg’s uncertainty principle requires anyone measuring a quantum system to [...]
Most counterterrorism policies fail, not because of tactical problems, but because of a fundamental misunderstanding of what motivates terrorists in the first place. If we’re ever going to defeat terrorism, we need to understand what drives people to become terrorists in the first place.
Conventional wisdom holds that terrorism is inherently political, and that people become [...]
