Custom developed digital weapons, cyber weapons nowadays typically chain together a number of zero-day exploits that are targeted against the specific site, the specific target that they want to hit. But it depends, this level of sophistication, on the budget and the quality of the actor who's instigating the attack. If it's a country that's less poor or less sophisticated, it'll be a less sophisticated attack.

I know that fundamentally, changes to the fabric of the internet, and sort of our methods of communication, can enforce our rights.

If we can't have an open and honest debate about the value of ideas in a university in Glasgow, or Boston, or anywhere else in the world, then where are they going to go?

We decentralise the ability to decide the level of publicity that's attached to any of our communications.

For me, in terms of personal satisfaction, the mission's already accomplished. I already won. As soon as the journalists were able to work, everything that I had been trying to do was validated. Because, remember, I didn't want to change society. I wanted to give society a chance to determine if it should change itself.

We have to be able to ask questions in order to answer them.

Most of the secrets the CIA has are about people, not machines and systems, so I didn't feel comfortable with disclosures that I thought could endanger anyone.