The New York Times has the story of Juju Jiang who installed a keylogging program on shared access Internet PC’s at a Kinko’s shop on two separate occasions then used the information he gained to exploit customers home PC’s via GoToMyPC. He got credit cards and social security numbers, etc. and started buying up a storm.
Makes you do a double take before sitting down at the library PC’s and adding a blog post or reading your e-mail.