Chicago, Philadelphia, San Francisco and Washington, D.C., have announced plans to build citywide, public, open-access 2.4 GHz WiFi networks for local government use and as affordable high-speed Internet access for citizens. The large-scale deployment of muni networks could cause significant security and management heartburn for any business that handles confidential information, including financial, healthcare and legal firms. The largest concern is the ability to compromise the security of the corporate local area network regardless of how it is set up. Analysis