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Messaging services

Difenso encrypts your emails and their attachments directly within Gmail and Outlook, with a unique key per message and full control over who can decrypt them.

Whether on Gmail or Outlook, Difenso protects your emails and their attachments without changing your habits: one-click encryption on send, instant decryption on receipt, and full control over the access you grant.

Gmail

Encrypt and decrypt your exchanges in one click

From your Gmail inbox, Difenso adds an encryption button directly in the compose window. Attachments can also be secured and saved to Google Drive, while received messages are decrypted instantly through the built-in Difenso menu.

Encrypted email received in Gmail with Difenso branding
Encrypting a Gmail message before sending
Feature

Encrypt a message in one click

Turn on encryption directly from the Gmail compose window: the message and its attachments are protected before they’re even sent, with a unique key generated for each exchange.

Secure on Drive button in the Gmail sidebar
Feature

Secure a file to Google Drive

The "Secure on Drive" link, available from the Gmail sidebar, lets you encrypt a file and save it directly to your Google Drive space, while keeping control over who can access it.

Decryption menu for a Gmail message
Feature

Decrypt in an instant

A simple menu available from the encrypted message lets you decrypt the message body or its attachments separately, without leaving your inbox.

Outlook

Zero Trust Encryption built into your inbox

The Difenso add-in for Outlook appears as a "Zero Trust Encryption" side panel. It lets you encrypt a message and its attachments before sending, with an optional validity period, then decrypt them in a single click on arrival.

Encrypted email sent from Outlook with a protected attachment
Zero Trust Encryption panel to encrypt an Outlook message
Feature

Encrypt the message and its attachments

From the Difenso panel, encrypt the message body and attach your files: they’re automatically encrypted and attached to your email, with a configurable validity period if needed.

Decrypted message shown in the Outlook panel
Feature

Read a decrypted message in plain text

On receiving an encrypted email, one click on "Decrypt the message" instantly displays its content in plain text in the Difenso panel, with no extra steps.

Decrypting an encrypted attachment in Outlook
Feature

Decrypt an attachment

Encrypted attachments are decrypted and downloaded directly from the Difenso panel, with a single click on their icon.

Access control

Stay in control of your exchanges, even after sending

Every encrypted message or attachment stays under your control after it’s sent. The "Access key list" shows who has decrypted your exchange and lets you enable or disable each recipient’s access in one click. The "Authorization list" lets you revoke a previously granted access at any time, for full traceability of your encrypted exchanges.

Managing decryption authorizations from Outlook

Technical sheets

Download the detailed documentation for Outlook and Gmail