The New York Times says that private detectives working for Hewlett Packard, in its attempt to track down news leaks, followed CNET reporter Dawn Kawamoto and tried to plant software on a CNET reporter’s computer that would communicate back to detectives. The Times report is based on anonymous sources, people who were briefed on the company’s review of the operation. The story also says the investigation into leaks began in January 2005, earlier than previously thought.