What is Lumma Stealer, the malware Microsoft says infected more than 394,000 Windows PCs worldwide?

What is Lumma Stealer, the malware Microsoft says infected more than 394,000 Windows PCs worldwide?

Microsoft, on May 21, announced that conducted a major takedown operation against Lumma Stealer, a malware designed to steal sensitive information from popular web browsers like Google Chrome, Mozilla Firefox and Microsoft Edge. In a blog post, Microsoft said that between March 16 and May 16, 2025, they identified more than 394,000 Windows PCs infected […]

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