I routinely update my Ubuntu 24.04.2 LTS Desktop machine using the terminal command:
sudo apt update && sudo apt upgrade -y
This morning I received an error message, including a 404 error for IP address 185.125.190.80 and a warning about "https://ppa.launchpadcontent.net/gezakovacs/ppa/ubuntu noble Release" (I have included all the spaces and punctuation)
I used reverse lookup tool to verify that the IP address belongs to Canonical. I looked up the URL for the troublesome ppa and eventually got to "https://launchpad.net/~gezakovacs".
I removed the ppa from my sources list as a precaution, but I really would like some clarification...