LulzSec was a hacker group that emerged in 2011, known for its high-profile cyber attacks on various organizations. The group aimed to expose security flaws and often targeted companies, government agencies, and media outlets, gaining notoriety for their activities. Their name is a combination of "lulz," meaning enjoyment at someone else's expense, and "security." The group operated for about 50 days, during which they claimed responsibility for several significant breaches, including attacks on Sony, PBS, and Fox. LulzSec's actions sparked discussions about cybersecurity and the ethical implications of hacking, leading to increased awareness and measures to protect sensitive information.