Mikko Hypponen

You should have mechanisms of communication, like faxes, which are obviously getting removed from offices because nobody uses them anymore. Faxes are great when e-mail doesn't work. I wouldn't be throwing them away.

Everything is being run by computers. Everything is reliant on these computers working. We have become very reliant on Internet, on basic things like electricity, obviously, on computers working. And this really is something which creates completely new problems for us. We must have some way of continuing to work even if computers fail.

It's going to be interesting to watch presidential elections in around 2040, when voters can dig up candidates' teenage angst pics and posts from old social media and discussion forum archives.

It's so cheap to store all data. It's cheaper to keep it than to delete it. And that means people will change their behavior because they know anything they say online can be used against them in the future.