1. Passwords? What passwords?
In 2008, network admin Terry Childs (on right) brought the City of San Francisco to its knees, resetting admin passwords to routers and switches on the city's FibreWAN network and then declining to hand over those passwords. The result? A locked down network and a frazzled Department of Telecommunications and Information Services in the city by the Bay. Childs was forced to trade in his office attire for the orange jumpsuits of the California penal system.