Legion of Doom (hacker group)

The Legion of Doom (LOD) was a hacker group founded by the hacker Lex Luthor (Raavan) after a rift with his previous group called the Knights of Shadow. LOD was active from the 1980s to the early 2000s, but was most active from 1984–1991 and at the time was considered to be the most capable hacking group in the world. Today, Legion of Doom ranks as one of the more influential hacking groups in the history of technology, appearing to be a reference to the antagonists of Challenge of the Superfriends.

At different points in the group's history, LOD was split into LOD and LOD/LOH (Legion of Doom/Legion of Hackers) for the members that were more skilled at hacking than pure phreaking.

Another hacking group existed simultaneously, called MOD, short for the Masters of Deception. While the ideologies of LOD and MOD differed, there was a cross-over between the members of the groups, so the actions of the members can be difficult to attribute. Unlike the hacking group MOD, there are different opinions regarding what the Legion of Doom is. LOD published the Legion of Doom Technical Journals and contributed to the overall pool of hacking knowledge. They were not causing any direct harm to the phone systems and computer networks they took over. Still, at the time, any tampering with the phone systems was considered damaging, and many LOD members were raided and prosecuted for causing alleged damage to systems (Grant, Darden and Riggs, etc.).