SANS Institute (SysAdmin, Audit, Network, Security) published a “set of network security vulnerabilities that are most commonly used by hackers to break into systems” for the first time in 2001, in collaboration with the FBI.

In this year’s edition they report the top 10 vulnerablities to Windows systems and the top 10 vulnerabilities to Unix systems. Every vurnerabilitie is clearly explained and solutions are offered.

System administrators are, of course, recommended to fix these vulnerabilities.