MedSec and Muddy Waters disclosed security holes in St Jude Medical pacemakers earlier this month. The company sued security firm MedSec for defamation after it published what St Jude said was bogus information about bugs in its equipment. MedSec CEO Justine Bone: MedSec had no choice but to disclose what it saw. The case shows there are still tensions along the way, but disagreement remains over how best to report vulnerabilities, Bone says. St Jude vs MedSec case shows that vendors and researchers have a better relationship and coordination system in place.”]