Set up Outlook to use S/MIME encryption Applies To Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the …

Learn how to use encryption and other security settings to protect messages sent from Outlook.

Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.

May 4, 2026 · Compare Microsoft 365 encryption options including Microsoft Purview Message Encryption, S/MIME, Information Rights Management (IRM), and learn about Transport Layer …

Sep 26, 2025 · With Microsoft 365, your content is encrypted at rest and in transit with the strongest encryption, protocols, and technologies available. Get an overview of encryption in Microsoft 365.

BitLocker Drive Encryption allows you to manually encrypt a specific drive or drives on a device running Windows Pro, Enterprise, or Education edition. For devices managed by an organization, BitLocker …

If you have a Microsoft 365 Family or Microsoft 365 Personal subscription, Outlook includes encryption features that let you share your confidential and personal information while ensuring that your email …

Encryption is the process of converting data into a code to prevent unauthorized access. In Windows, this can be achieved using built-in tools that allow you to encrypt files and folders, ensuring that only …

Jan 13, 2026 · Service encryption provides another layer of encryption for customer data-at-rest, giving customers two options for encryption key management: Microsoft-managed keys or Customer Key. …

Jan 10, 2025 · Learn how to send and receive encrypted email messages between people inside and outside your organization.

Jul 5, 2025 · Device encryption is intended to protect your data in case your device gets stolen. It verifies that the security of the device is intact, and only lets you access your files when the device is turned …