Google introduces end-to-end encryption for Gmail on the web for Businesses


Level 28
Thread author
Honorary Member
Top Poster
Jun 14, 2011
Google announced on Friday that it's adding end-to-end encryption (E2EE) to Gmail on the web, allowing enrolled Google Workspace users to send and receive encrypted emails within and outside their domain.

Client-side encryption (as Google calls E2EE) was already available for users of Google Drive, Google Docs, Sheets, Slides, Google Meet, and Google Calendar (beta).

Once enabled, Gmail client-side encryption will ensure that any sensitive data delivered as part of the email's body and attachments (including inline images) can not be decrypted by Google servers — the email header (including subject, timestamps, and recipients lists) will not be encrypted.
Last edited by a moderator:

Zero Knowledge

Level 20
Top Poster
Content Creator
Dec 2, 2016
More and more we are seeing companies move to E2EE. The less data you hold the better, it's a liability holding vast troves of data. It doesn't stop people complaining about 'going dark', but that argument is wrong as there are plenty of other ways to collect data and track users.


Staff Member
Malware Hunter
Jul 27, 2015
On Tuesday, Google made client-side encryption available to a limited set of Gmail and Calendar users in a move designed to give them more control over who sees sensitive communications and schedules.

Client-side encryption is a generic term for any sort of encryption that’s applied to data before it’s sent from a user device to a server. With server-side encryption, by contrast, the client device sends the data to a central server, which then uses keys in its possession to encrypt it while it’s stored. This is what Google does today. (To be clear, the data is sent encrypted through HTTPS, but it's decrypted as soon as Google receives it.) Google’s client-side encryption occupies a middle ground between the two. Data is encrypted on the client device before being sent (by HTTPS) to Google. The data can only be decrypted on an endpoint machine with the same key used by the sender. This provides an incremental benefit since the data will remain unreadable to any malicious Google insiders or hackers who manage to compromise Google servers.

Abbreviated as CSE, client-side encryption was already available for Google Drive, Docs, Slides, Sheets, and Meet for users of Google Workspace, which the company sells to businesses. Starting on Tuesday, Google is rolling it out to customers of Gmail and Calendar Workspace.

About us

  • MalwareTips is a community-driven platform providing the latest information and resources on malware and cyber threats. Our team of experienced professionals and passionate volunteers work to keep the internet safe and secure. We provide accurate, up-to-date information and strive to build a strong and supportive community dedicated to cybersecurity.

User Menu

Follow us

Follow us on Facebook or Twitter to know first about the latest cybersecurity incidents and malware threats.