Public-key cryptography isn't just for us geeks, any longer.
All thanks to the amazing people at Keybase.io
Now even a complete noob can start sending and receiving encrypted messages, across all their devices easily. With Keybase.io you can encrypt documents, use end-to-end encryption for secure chats, prove ownership of your social media accounts, and much more. New features are being added all the time, like the more recent (beta) encrypted filesystem. Keybase.io is Available for Microsoft Windows, macOS, Linux and Android.
Add me: keybase.io/ihayward