Google is expanding its enterprise security capabilities with the rollout of end-to-end encryption for Gmail on iOS and Android devices. The feature is now available to enterprise users, allowing them to compose and read encrypted emails directly within the Gmail app without requiring additional third-party applications or separate portals.
This expansion builds on Google's client-side encryption infrastructure, which was introduced to Gmail's web version over a year ago. The new mobile implementation maintains backward compatibility with recipients who prefer using their web browsers—encrypted messages can be read and replied to securely through any browser, regardless of the recipient's email provider or device type.
To activate end-to-end encryption on mobile devices, administrators must enable Android and iOS clients through the CSE admin interface in the Admin Console. Users can then activate encryption on individual emails by clicking a lock icon before sending. The process supports attachments and maintains the familiar Gmail interface, streamlining the encryption workflow without disrupting user experience.
Google emphasizes that the new functionality merges robust privacy protections with ease of use, making encrypted communication accessible across organizational sizes. However, the feature is currently limited to Enterprise Plus members with the Assured Controls or Assured Controls Plus add-on, targeting organizations managing sensitive data and requiring enhanced compliance tools.
The rollout is immediately available in both Rapid Release and Scheduled Release domains for eligible enterprise customers. Recipients of encrypted messages receive notifications in their inbox like standard emails, with decryption happening seamlessly within the app or browser. This approach eliminates the traditional friction associated with encrypted email, where users often struggle with separate applications or complex key management systems.