Microsoft Threat Intelligence Podcast Inside Microsoft’s Global Operation to Disrupt Lumma Stealer’s 2,300-Domain Malware Network
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Jul 23, 2025 Richard Boscovich, Assistant General Counsel at Microsoft’s Digital Crimes Unit, and Derek Richardson, Principal Investigator at the same unit, dive into the impressive takedown of Lumma Stealer's vast malware network. They discuss innovative legal strategies like the RICO Act and the importance of global collaboration with partners such as Europol. The conversation reveals how Microsoft seized 2,300 domains to protect hundreds of thousands of victims and hints at a new era of persistent cybercrime disruption that may redefine cybersecurity operations.
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Global Luma Stealer Takedown
- Luma Stealer quietly infected nearly 400,000 Windows machines worldwide by stealing data silently.
- Microsoft's global takedown seized 2,300 domains and disrupted this widespread infostealer operation.
Legal Innovations Against Malware
- RICO law allows grouping multiple cybercrime actors into one legal action without needing them to know each other.
- Trespass to chattels law, centuries old, is creatively used to address unauthorized access to Microsoft's systems.
Applying Trespass to Chattels Digitally
- Trespass to chattels is a common law concept repurposed to cover unauthorized access to operating systems.
- Microsoft leverages this tort to protect its OS from malware intrusions.
