I tell people: if it's in the news, don't worry about it, because by definition, news is something that almost never happens.

If the FBI parks a van bristling with cameras outside your house, you are justified in closing your blinds.

We no longer know whom to trust. This is the greatest damage the NSA has done to the Internet, and will be the hardest to fix.

A colleague once told me that the world was full of bad security systems designed by people who read Applied Cryptography

Liberty requires security without intrusion, security plus privacy.

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

Only amateurs attack machines; professionals target people.