I am regularly asked what the average Internet user can do to ensure his security. My first answer is usually 'Nothing; you're screwed'.

It is insufficient to protect ourselves with laws; we need to protect ourselves with mathematics.

Anyone, from the most clueless amateur to the best cryptographer, can create an algorithm that he himself can't break.

There are two types of encryption: one that will prevent your sister from reading your diary and one that will prevent your government.

Surveillance is the business model of the Internet.

Air travel survived decades of terrorism, including attacks which resulted in the deaths of everyone on the plane. It survived 9/11. It'll survive the next successful attack. The only real worry is that we'll scare ourselves into making air travel so onerous that we won't fly anymore.

Only amateurs attack machines; professionals target people.