csoonline.com -“Check out these 24 free, standout software tools that will make your daily security work easier.
Who doesn’t love free software?
Infosec professionals are fortunate to have many good free tools for a range of tasks. The following list of two dozen tools include everything from password crackers to vulnerability management systems to networks analyzers. Whatever your security role is, you’ll find something useful here.”
Source: 24 best free security tools