If you live in Russia, you've probably been hacked at least once — or at least had someone try to hack you. Many of us think that security is complicated: there's too much information, and the advice of different experts sometimes contradicts each other. But there is a set of basic rules. Absolutely everyone needs to know them — it's like ABC, only on the Internet. We've collected them — and in this video, we're telling you what you need to do right now to protect your personal correspondence from both scammers and security officials who might want to access it.