"There has been a great deal of attention on medical device security and it's critical that the entire industry continually enhances and improves security," said Ann Barron DiCamillio, former director of the U.S. Computer Emergency Readiness Team, in a statement. DiCamillio is also an advisor on St. Jude's Cyber Security Medical Advisory Board, which the company created in October to address the continuous vulnerability claims being made by Muddy Watters and MedSec. Meanwhile, Muddy Waters and MedSec—both of which are locked in a defamation lawsuit with St. Jude—are saying St. Jude's latest patch isn't the fix it claims to be. "The announced fixes do not appear to address many of the larger problems," Muddy Waters said in a blog post, "including the existence of a universal code that could allow hackers to control implants."