An Iranian-affiliated hacktivist group has claimed responsibility for a wiper malware attack against Stryker Corporation, a major medical device and surgical technology manufacturer. The claimed attack involves data destruction, which carries potential for operational disruption, data loss, and supply chain concerns affecting healthcare sector partners. Attribution is unverified and based solely on the group’s own claim; confirmed impact, scope, and affected systems have not been independently corroborated as of this report. **Current sourcing is T3 only (source quality score 0.64). This assessment is preliminary pending primary- or secondary-tier verification from CISA, law enforcement, or vendor threat intelligence.** Severity is rated high based on potential impact scope, not confirmed damage. If independent verification contradicts the claim, rating should be downgraded.