Web Key Directory: the technology that every email domain should adopt to ensure the authenticity and security of communications - TL;DR Why Encryption Is the Foundation of Digital Privacy Encryption is the technology that transforms readable information into incomprehensible code for anyone without the decryption key. It’s what protects banking transactions, government communications, and healthcare data. In the context of the European GDPR, strong encryption also enables the transfer of personal data outside the EU: when data is properly encrypted, individuals are no longer identifiable, simplifying regulatory compliance for international communications. Yet, paradoxically, the world’s most used communication technology – email – remains largely unencrypted, exposing billions of daily messages to potential interception. This article explores how the protocol Web Key Directory (WKD) finally solves this paradox, making email encryption simple and automatic: just as we now visit secure websites (HTTPS) without doing anything special, with WKD emails are also encrypted automatically without any user intervention.