AirDefense Personal Lite You should never lose sight of the security risks involved in using Wi-Fi. This simple program alerts you whenever you connect to an insecure wireless network or to a hotspot that you haven’t designated as safe.

Features:

• Extends the wireless security perimeter to mobile users: 24×7 protection inside the enterprise & on the road
• Comprehensive detection of wireless misconfigurations for mobile users
• Pro-active protection against all wireless threats
• Threat assessment of wireless network usage of mobile employees
• Ability to define and enforce wireless security policy (corporate or regulatory) on laptops
• Stop probing stations and modem use in a “no wireless” environment

Download from here for free.