Teams: Microsoft improves video call security

A public preview of the end-to-end encryption is now available. Teams draws level with WhatsApp and Facebook Messenger. However, the function must be activated by users and administrators.

Microsoft has released a public preview of end-to-end encryption (E2EE) for one-to-one Teams calls, bringing its enterprise platform on par with Facebook’s consumer apps WhatsApp and Messenger. Microsoft announced the encryption function back in March at Ignite Spring 2021.

E2EE means that neither Microsoft nor anyone else can access the decrypted content of a one-on-one conversation. Facebook introduced E2EE for audio and video calling in its messenger app in August.

Microsoft stated in a blog post that video and voice data are protected in real time and that both parties must enable the setting. These are protected at rest and in transit by other encryption protocols such as HTTPS for secure connections between a device and a website.

To allow this feature, administrators must enable advanced encryption policies for Teams users. Admins can enable this feature for the entire company or set custom policies that assign the feature to selected users.