University Professor and Co-Defendants Respond to Defamation Charge From St. Jude Medical

Health-care security company MedSec, investment research firm Muddy Waters Research, and University of Chicago medical professor Hemal Nayak filed a response on October 24 to St. Jude Medical’s lawsuit against them.

St. Jude’s lawsuit was filed on September 7, two weeks after the defendants published a report alleging security risks in pacemakers, implanted defibrillators, and other cardiac rhythm management (CRM) devices designed by St. Jude. The lawsuit stated that MedSec, Muddy Waters, and Nayak fabricated these claims for their own financial gain, citing the fact that Nayak sits on MedSec’s board of directors as evidence of a conflict of interest in the defendants’ research partnership.

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