It's always educative to have a look at one's #fail2ban logs.
All of these are attacker IP addresses (or hosts infected with malware such as #Mirai or #gafgyt etc) trying to get into the #SSH of my poor #RPi;

2026-06-24 12:18:17,936 fail2ban.actions [625]: NOTICE [sshd] Ban 91.92.40.6
2026-06-24 12:34:04,463 fail2ban.actions [625]: NOTICE [sshd] Ban 91.92.40.6
2026-06-24 12:41:09,604 fail2ban.actions [625]: NOTICE [sshd] Ban 185.10.63.235
2026-06-24 12:49:24,462