US agency asks firms to secure Microsoft tool after Stryker cyberattack - Business Insurance

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US agency asks firms to secure Microsoft tool after Stryker cyberattack - Business Insurance Skip to content Register for free Search Search Log In Risk Management Cyber Risks Pricing Trends Mergers & Acquisitions Technology Sponsored Content WSIA RISKWORLD Workers Comp & Safety Workers Comp Cost Control Pain Management Workplace Safety International EMEA Asia-Pacific Latin America People Events BI Intelligence Top 100 Agents & Brokers Best Places to Work 2025 Lists Directories Insurance Pricing BI Stock Index Magazine Current Issue Past Issues Subscribe Women to Watch ALL INsurance Resources Risk Perspectives Sponsored Content Webinars White Papers Risk Management Cyber Risks Pricing Trends Mergers & Acquisitions Technology Sponsored Content WSIA RISKWORLD Workers Comp & Safety Workers Comp Cost Control Pain Management Workplace Safety International EMEA Asia-Pacific Latin America People Events BI Intelligence Top 100 Agents & Brokers Best Places to Work 2025 Lists Directories Insurance Pricing BI Stock Index Magazine Current Issue Past Issues Subscribe Women to Watch ALL INsurance Resources Risk Perspectives Sponsored Content Webinars White Papers Risk Management Cyber Risks Pricing Trends Mergers & Acquisitions Technology Sponsored Content WSIA RISKWORLD Workers Comp & Safety Workers Comp Cost Control Pain Management Workplace Safety International EMEA Asia-Pacific Latin America People Events BI Intelligence Top 100 Agents & Brokers Best Places to Work 2025 Lists Directories Insurance Pricing BI Stock Index Magazine Current Issue Past Issues Subscribe Women to Watch ALL INsurance Resources Risk Perspectives Sponsored Content Webinars White Papers Risk Management Cyber Risks Pricing Trends Mergers & Acquisitions Technology Sponsored Content WSIA RISKWORLD Workers Comp & Safety Workers Comp Cost Control Pain Management Workplace Safety International EMEA Asia-Pacific Latin America People Events BI Intelligence Top 100 Agents & Brokers Best Places to Work 2025 Lists Directories Insurance Pricing BI Stock Index Magazine Current Issue Past Issues Subscribe Women to Watch ALL INsurance Resources Risk Perspectives Sponsored Content Webinars White Papers US agency asks firms to secure Microsoft tool after Stryker cyberattack Cyber Risks , Risk Management , Technology Mar 19, 2026 (Reuters) – The U.S. government on Wednesday asked companies to strengthen the security of Microsoft’s endpoint management tool, after a cyberattack on medical device maker Stryker last week. The March 11 cyberattack hit Stryker’s computer systems, causing widespread disruption to its business, including its ability to process orders, make products and ship them to customers. The company said it had experienced a global disruption to its Microsoft environment. An Iran-linked hacking group called Handala claimed responsibility for the attack, saying it was in retaliation to a strike on a girls’ school in Minab, southern Iran. The Cybersecurity and Infrastructure Security Agency said it is aware of malicious cyber activity targeting endpoint management systems of U.S. organizations, based on the Stryker attack. CISA asked companies to harden endpoint management system configurations, implementing Microsoft’s best practices to secure Microsoft Intune, a tool that manages user access, devices, and applications across organizations. CISA is coordinating with federal partners, including the Federal Bureau of Investigation, to identify additional threats and determine mitigation actions. Bloomberg News reported on Wednesday that the cyberattack on Stryker has delayed surgeries for some patients. Stryker said on Tuesday that it had contained the attack and that no patient-related services or connected medical products were affected, though it did not provide details on the financial impact. Related News Swiss Re sees claims from natural catastrophes rising in 2026 March 19, 2026 CRC Group introduces Insurisk Data Centers product March 18, 2026 Terrorism insurance take-up rates fall in five years: Marsh March 18, 2026 Signorelli, Propis to receive Spencer honors March 18, 2026 Accounting class actions drop, settlement sizes grow March 18, 2026 Disney cracks down on ‘rogue’ magic makers March 18, 2026 Louisiana bill would create medical claims database, revise fee schedule March 18, 2026 Court awards maximum benefits in truck driver back injury case March 18, 2026 Oklahoma Senate passes bill on liability minimum for events March 18, 2026 Facebook-f X-twitter Linkedin-in Business Insurance is a singular, authoritative news and information source for executives focused upon risk management, risk transfer and risk financing. Never miss important news: Become a Business Insurance Online subscriber today Subscribe Now Information About Us Contact Advertise Privacy Policy Terms & Conditions Copyright 2026. BUSINESS INSURANCE HOLDINGS Member, Beacon International Group, Ltd.

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