Is Zoom end-to-end encrypted by default for all meeting types and users, or is it something that needs to be enabled specifically? If it’s not on by default, what meeting types support it, and what steps are required to turn it on? Also, are there any limitations or caveats to using Zoom’s end-to-end encryption that users should be aware of, like feature restrictions or compatibility issues with certain hardware or software?

Answer

No, Zoom is not end-to-end encrypted by default for all meetings.

Zoom offers end-to-end encryption (E2EE) as an option, but it needs to be enabled by the host at the time of scheduling the meeting. When E2EE is enabled, only meeting participants have access to the encryption keys used to encrypt the meeting. This means that Zoom servers do not have access to the encryption keys and cannot decrypt the meeting content, including audio, video, and screen sharing.

However, when E2EE is not enabled, Zoom uses Transport Layer Security (TLS) encryption to protect meetings in transit between a user’s device and Zoom’s servers. This means that the data is encrypted while it’s being transmitted over the internet, preventing eavesdropping by third parties. Zoom servers can access the unencrypted meeting content in this mode. This is often referred to as “encryption in transit”.

Therefore, while Zoom offers end-to-end encryption, it is not the default setting. Users need to actively choose to enable it when scheduling their meetings to ensure that only participants can access the content.

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