An anonymous reader writes "The Smoking Gun recently published a story on their investigation and outing of Pranknet, an online cabal that aims to take pranks to the next level. Their legacy includes thousands of dollars of damage, and many harassed souls. Many of the pranks have clear criminal implications. Reading their report may send chills down your collective spines."
From the linked article: "Coalescing in an online chat room, members of the group, known as Pranknet, use the telephone to carry out cruel and outrageous hoaxes, which they broadcast live around-the-clock on the Internet. Masquerading as hotel employees, emergency service workers, and representatives of fire alarm companies, 'Dex' and his cohorts have successfully prodded unwitting victims to destroy hotel rooms and lobbies, set off sprinkler systems, activate fire alarms, and damage assorted fast food restaurants. But while Pranknet's hoaxes have caused millions of dollars in damages, it is the group's efforts to degrade and frighten targets that makes it even more odious ..."