Brian Oblivion. Kingpin. Mudge. Space Rogue. Stefan von Neumann. Tan. Weld Pond. That’s how the hacker group called the L0pht appeared before the Senate Subcommittee on Government Cybersecurity on May 19, 1998. They said, among other things, that they could take down the Internet in 30 minutes. The senators listened closely and afterward praised them effusively.