Which intelligence agency's website was attacked by LulzSec on June 15, 2011?

LulzSec, a well-known hacker group, targeted the Central Intelligence Agency (CIA) on June 15, 2011, demonstrating their ability to breach prominent organizations and highlighting vulnerabilities in even the most secure systems. The attack on the CIA's website underscored the group's motivations, which included drawing attention to perceived shortcomings in cybersecurity measures and causing embarrassment to prestigious institutions. This incident became one of the notable moments in cyber history, particularly because it involved a governmental intelligence agency that typically is associated with high security and protective measures.