Broken signatures on

Matthew Pounsett matt at
Wed Mar 17 23:15:27 UTC 2021

Beginning today, I'm seeing the following errors on systems that use
the ISC Debian packages:

Err:5 buster InRelease
  The following signatures were invalid: EXPKEYSIG B188E2B695BD4743
DEB.SURY.ORG Automatic Signing Key <deb at>

I haven't seen any official word from ISC that there are new keys to
grab, so wanted to check that someone isn't messing about with your

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