You might think your Linux server sits safely behind a firewall, but search...

https://wiki-cable.win/index.php/Backup_Job_Scams:_Why_Your_%22Failed_Alert%22_Phishing_Email_Is_Actually_a_Recon_Mission

You might think your Linux server sits safely behind a firewall, but search engines often index your exposed SSH banners or forgotten GitHub config files. Attackers scrape this data to map your infrastructure before they even attempt a login