Medical device maker Abbott announced the voluntary recall of 465,000 pacemakers on August 28.

The recall is being issued so that the manufacturer can install a firmware patch upgrade, meant to combat a major security violation discovered by Abbott across six of it's pacemaker products.

Observers of medical security will remember the infamous 2016 Muddy Water expos√© that disclosed vulnerabilities in pacemakers sold by St. Jude. Abbott completed a full acquisition of St. Jude earlier this year; this recall is meant to address the security flaws in the now-Abbott-branded pacemakers. The vulnerabilities "could allow an attacker to modify the devices' pacing commands or cause premature battery depletion."

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