Emails sent with Gmail’s end-to-end encryption are extremely secure because only the sender has control over the encryption key, which is stored outside of Google’s infrastructure. Users can click the padlock by the Bcc button and press Turn On under the Additional Encryption’ option to apply it.

IT departments participating in Google's beta can use Gmail to send end-to-end encrypted emails to recipients within the same organization. The functionality will expand

Through Gmail, Google is making it simple for its business users to send end-to-end encrypted communications. The business announced that