As a penetration tester hired to pierce the digital fortresses of Fortune 1000 casinos, banks and energy companies, Kevin Finisterre has hacked electronic cash boxes, geologic-survey equipment, and on more than one occasion, a client's heating, ventilation, and air-conditioning system.
But one of his most unusual hacks came during a recent assignment testing the security of a US-based municipal government. After scanning several IP addresses used by the city's police department, he soon discovered they connected directly into a Linux device carried in police cruisers. Using little more than FTP and telnet commands, he then tapped into a digital video recorder used to record and stream audio and video captured from gear mounted on the vehicle's dashboard.

He was shocked by the resulting live feed that eventually appeared on his computer screen

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