Popular video-conferencing app Zoom has announced that users must update their desktop client after this weekend in order to continue joining meetings, as it rolls out GCM encryption for all Zoom meetings.

Zoom announced that it would begin enabling GCM encryption on May 30, at 01:00 PDT. The update is a really welcome boost to Zoom’s security, which was found to be lacking following the app’s meteoric rise thanks to the COVID-19 pandemic. Whilst not as good as end-to-end encryption, GCM, or (Galois/Counter Mode) is a higher-quality security system, perfect for video conferencing, because it uses a stream cipher, rather than a block cipher. Zoom’s update note states:

We will be enabling GCM encryption across the entire Zoom platform, providing increased protection for meeting data. This will be deployed as a rolling update over the release window. Once this is enabled for your…

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