On Freitag, 29. März 2024 19:39:05 CEST pasture_clubbed242--- via tor-relays wrote:
The near-universally used 'xz' compression library has been found to contain a backdoor in certain code branches. This backdoor has made it into some systems such as Debian Sid.
Details regarding this backdoor are available here. https://www.openwall.com/lists/oss-security/2024/03/29/4
Pretty unlikely that anyone uses testing or sid for productive servers.