So how do Google's super-smart security folk protect their data?

It's a question that occurs to many of us: if digital security is such a minefield, how do you keep your personal data safe?

One person who knows about the risks is Adam Langley. As a security engineer at Google, he makes key decisions about how your data is spread around the internet. He also has access to systems that would have hackers salivating.

So how does Adam make sure he's not taken for a ride? Not how you'd think. Speaking at a conference at CloudFlare headquarters in San Francisco, he outlined his strategy.