Gmail Client-Side Encryption (CSE) adds encryption to a message from the user’s device. In this way, sensitive data in the body of the text and in attached documents is already rendered unreadable before it reaches Google’s own servers. The feature already existed in the browser version of Gmail, where it has been in beta since December last year. A version for Google’s various Office programs, including Drive, Docs, Sheets and more, has also been in testing for several months. The feature is now being rolled out more broadly, specifically for Google Workspace Enterprise Plus, Education Plus, and Education Standard. By default, the feature is currently disabled, but clients of these suites can enable their encryption using a third-party encryption service. For more installation information, see the feature documentation. Incidentally, this is not about “end-to-end” encryption, as found with some messaging services. CSE is primarily intended for larger companies and offers the administrators of these companies in particular many options, including who can use the encryption. It encrypts the text and attached documents but not the subject of an email, so caution is advised.