NSA Said to Exploit Heartbleed Bug for Intelligence for Years Government, Privacy, Security Add comments Apr 112014 The U.S. National Security Agency knew for at least two years about a flaw in the way that many websites send sensitive information, now dubbed the Heartbleed bug, and regularly used it to gather critical intelligence, two people familiar with the matter said. Well that’s one less trick in the playbook… Leave a Reply Cancel replyYou must be logged in to post a comment.