APT / Synaptic Bad signature

What to do when experiencing The following signatures were invalid: BADSIG ... when refreshing the packages from the repository?

# sudo -s -H
# apt-get clean
# rm /var/lib/apt/lists/*
# rm /var/lib/apt/lists/partial/*
# apt-get clean
# apt-get update

Linux/BadSignature (last edited 2026-01-16 00:14:46 by PieterSmit)