ProtonMail
Based in Switzerland, ProtonMail is an encrypted email service that is very popular with cryptocurrency enthusiasts. Proton Mail is the world’s largest end-to-end encrypted email service. Proton Mail makes sure…
Keybase – Secure Messaging and File-Sharing
Keybase is a user-friendly communication tool that lets you share messages and files with friends, family, and colleagues. It works with a similar interface to popular messaging apps — if…