Seven years ago, we started building Tutanota, an encrypted email service with a strong focus on security, privacy and open source. Long before the Snowden revelations, we felt there was a need for easy-to-use encryption that would allow everyone to communicate online without being snooped upon. As developers, we know how easy it is to spy on email that travels through the web. Email, with its federated setup is great, and that's why it has become the main form of online communication and still is. However, from a security perspective, the federated setup is troublesome—to say the least.