Collaboration with Security - Microsoft Teams

Microsoft Teams follows all the security best practices and procedures, as part of the Microsoft 365 and Office 365 services. This article details how Teams handles common security threats through defense-in-depth, customer controls within the service, security hardening, and operational best practices. Teams is trustworthy by design and provides details of its security framework to keep users well-protected.

https://docs.microsoft.com/en-us/microsoftteams/teams-security-guide#:~:text=Teams%20data%20is%20encrypted%20in,%2C%20meetings%2C%20and%20other%20content.