Update from birdsite:
In terms of the incident itself, we will publish an update shortly. Summary is: an attacker accessed the production infra that runs matrix.org hence the rebuild. Source code & packages are unaffected. We do not think user data was targeted, but are playing it safe.
#Matrix Security Breach!
especially for matrix.org users: READ THIS!
Kudos to matrix for being transparent about exactly what happened. It's a refreshing change of pace from the likes of Facebook.
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