Iran-linked hacking group Handala claimed a cyberattack on U.S. medical device company Stryker

On March 11, 2026, the Iran-linked hacking group Handala claimed responsibility for a cyberattack on Stryker, a Michigan-based medical device manufacturer. The attack disrupted Stryker's global Microsoft environment, wiping employee devices, though Stryker stated it found no evidence of ransomware or malware and believed the incident was contained. Handala said the attack was retaliation for a strike on a school in Minab, Iran, during the opening days of the U.S.-Israeli military campaign against Iran.