In a significant collaborative effort, US and European authorities, along with Microsoft, disrupted the notorious Lumma Stealer malware operation that had infected approximately 394,000 Windows computers globally. This operation, which was heavily utilized by cybercriminals to steal sensitive information, saw the seizure of around 2,300 domains as law enforcement agencies executed a coordinated takedown. Microsoft not only filed legal actions against the creators of Lumma Stealer but also implemented measures to sinkhole domains associated with this prevalent information-stealing malware. The successful disruption underscores a unified effort to combat cybercrime on an international scale.