Microsoft is enabling end-to-end encryption (E2EE) for Skype for Business (SfB) One-on-One and Group calls. This update will give organizations more control over who can join and listen in to meetings or have access to sensitive information. Microsoft Teams has supported E2EE since the beta stage, but that feature was only available for public preview.

“Multiple enterprise customers in the US and Europe across industries such as aerospace, manufacturing, telecommunications, and professional services are in the process of rolling out E2EE for Teams calls,”saysJohn Gruszczyk, a technical product manager at Microsoft.
Microsoft Teams now has end-to-end encryption support
Microsoft Teams now has end-to-end encryption support
Encryption of data in transit and at rest helps ensure that only those with proper access rights have access to the data in Teams. Microsoft also uses SharePoint encryption to secure at-rest files, and OneNote encryption for notes stored in Microsoft Teams. Chat content in Teams is also encrypted in transit and at rest.
E2EE is an additional encryption method, so your Teams calls are even more secure, but certain Teams features will be disabled when you enable it. These include the ability to record, add a live caption, transfer calls, park calls, merge calls, and add participants.