Learn how to use encryption and other security settings to protect messages sent from Outlook.
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 web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...
Encryption is an important part of your file protection and information protection strategy. This article provides an overview of encryption for Microsoft 365. Get help with encryption tasks like how to set up encryption for your organization and how to password-protect Microsoft 365 documents. For information about certificates and technologies like TLS, see Technical reference details about ...
Compare Microsoft 365 encryption options including Microsoft Purview Message Encryption, S/MIME, Information Rights Management (IRM), and learn about Transport Layer Security (TLS).
Documentation Data encryption in OneDrive and SharePoint Understand the basic elements of encryption for data security in OneDrive and SharePoint. Service encryption and key management - Microsoft Purview Understand service encryption's role in data resiliency in Microsoft 365. Learn about two key management options for Microsoft 365 workloads.
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. When you use Microsoft-managed keys, Microsoft online services automatically generate and securely store the root keys used for service encryption.
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 individuals with the correct decryption key can access the contents.