Tech: Secunia - Must Have App

Secunia Personal Software Inspector, notifies you if your installed PC software is out of date and potentially vulnerable to hackers. How does it work? PSI 2.0 scans your installed software and builds a database of application version numbers. It then compares what it found on your system to Secunia's central database of latest-available version numbers. (The central database contains version information on a huge range of software.)