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I thought cryptography was a technique that did not require your trusting other people-that if you encrypted your files, you would have the control to make the choice as to whether you would surrender your files.

The use of encrypted communication and data storage to shield terrorist coordination from intelligence and law-enforcement authorities is known as 'going dark.'

Every time a bit of information is erased, we know it doesn't disappear. It goes out into the environment. It may be horribly scrambled and confused, but it never really gets lost. It's just converted into a different form.

In some ways, you can think of end-to-end encryption as honoring what the past looked like.

Usually it is uses of words, not words in themselves, that are properly called vague.

I've come to learn there is a virtuous cycle to transparency and a very vicious cycle of obfuscation.

Privacy and encryption work, but it's too easy to make a mistake that exposes you.

If I have a bunch of computer lingo that I have no idea what I'm speaking about, I really need to know what I'm talking about.

They were saying computers deal with numbers. This was absolutely nonsense. Computers deal with arbitrary information of any kind.

Garbage can provide important details for hackers: names, telephone numbers, a company's internal jargon.