In March of this year, Microsoft promised to endow its enterprise platform Microsoft Teams with support for end-to-end encryption soon. The company recently announced that the rollout of the feature would begin in early July. It will take about two weeks to integrate it fully.
End-to-end encryption is the encryption of information at its source and decryption for its intended purpose without the possibility of decryption by intermediate nodes. Microsoft Teams will use end-to-end encryption (E2EE) for ad hoc VoIP calls with two parties, allowing users to transfer sensitive information such as passwords more securely.
According to the MSPoweruser portal, administrators can enable this feature for both specific users and the entire organization. Users can then enable end-to-end encryption using the End-to-End Call Encryption option under Settings -> Privacy. Call recording and transcription will no longer be available. E2EE calls will only support basic features such as audio, video, screen sharing, chat, and advanced features will not be available.
Encryption will only work if both the caller and the call recipient have enabled E2EE in the settings. End-to-end encryption will only be available on desktop and mobile clients, not on the web version of Teams.