<ul><li>Microsoft, in partnership with the U.S. Department of Justice, led a coordinated effort to dismantle the Lumma Stealer malware network, a significant cybercrime tool.</li><li>Over 394,000 Windows machines were infected by Lumma Stealer between March and mid-May 2025, leading to theft of login credentials and financial information.</li><li>With international assistance, Microsoft took down 2,300 malicious domains associated with Lumma's infrastructure, while the DOJ shut down five critical LummaC2 domains.</li><li>While the takedown is a blow to the Lumma malware empire, experts caution that such tools are rarely eradicated completely, emphasizing the importance of ongoing collaboration between industry and governments to combat cyber threats.</li></ul>

Microsoft and DOJ deal crushing blow to Lumma malware empire

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