When you leave public footprints like SSH config snippets on GitHub or outdated...

https://www.bookmarking-planet.win/search-engines-expose-more-than-just-websites-when-your-ssh-configuration

When you leave public footprints like SSH config snippets on GitHub or outdated job titles on LinkedIn, you hand attackers a roadmap. They use this search exposure to map your infrastructure or craft perfect spear phishing lures