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CISA Calls on Organizations to Strengthen Microsoft Intune Security After Stryker Incident

Gbhackers •Divya • March 19, 2026

The Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent alert calling on organizations to aggressively harden their endpoint management systems. Released on March 18, 2026, the critical warning follows a significant cyberattack against U.S.-based medical technology provider Stryker Corporation. The agency observed malicious actors actively targeting endpoint management platforms, explicitly misusing legitimate administrative […]

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CISA Urges Endpoint Security Enhancements After Stryker Cyberattack On March 11, 2026, medical technology firm Stryker experienced a significant cyberattack attributed to the Iran-linked hacking group Handala. The attack exploited vulnerabilities in Stryker's Microsoft Intune endpoint management system, allowing the attackers to wipe data from approximately 200,000 devices and steal 50 terabytes of data. The incident caused global disruptions to Stryker's operations, affecting order processing, manufacturing, and shipping. CISA has since issued an urgent advisory urging U.S. organizations to harden their endpoint management systems, particularly Microsoft Intune, by implementing best practices such as role-based access control and multi-factor authentication. Stryker has confirmed the containment of the breach but has not disclosed specific details on how the attackers gained access. The FBI is coordinating with CISA to monitor further threats related to this incident. The attack is seen as part of a broader geopolitical conflict, with implications for cybersecurity across the healthcare sector. 45 sources 79

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Stryker Corporation