ao link
Menu
Teiss - Cracking Cyber Security
Teiss - Cracking Cyber Security

Microsoft files legal action against information-stealing malware Lumma Stealer

Linked InXFacebook
bookmark_borderSave to Library

(Reuters) -  Microsoft said on Wednesday its Digital Crimes Unit (DCU) filed a legal action against Lumma Stealer last week, after it found nearly 400,000 Windows computers globally infected by the information-stealing malware in the past two months.

 

Lumma is capable of stealing data from various browsers and applications, such as cryptocurrency wallets, and installing other malware, the company said in a blog.

Microsoft’s DCU helped in the "takedown, suspension, and blocking of  malicious domains that formed the backbone of Lumma’s infrastructure," via a court order from the U.S. District Court of the Northern District of Georgia, the blog said.

 

The U.S. Department of Justice said on Wednesday it has seized five internet domains used by malicious cyber actors to operate the LummaC2 information-stealing malware service. The FBI’s Dallas Field Office is investigating the case.

 

"The growth and resilience of Lumma Stealer highlight the broader evolution of cybercrime and underscores the need for layered defenses and industry collaboration to counter threats," Microsoft said in a separate blog post on the malware.

 

 (Reporting by Juby Babu in Mexico City; Editing by Alan Barona)

Linked InXFacebook
bookmark_borderSave to Library
Teiss - Cracking Cyber Security

Subscribe to our Weekly Newsletter

Receive the latest insights direct to your inbox, and gain access to our exclusive events.
Teiss - Cracking Cyber Security

Winston House, 3rd Floor,
Units 306-309, 2-4 Dollis park,
London, N3 1HF

 

020 8349 4363

info@teiss.co.uk

 © 2026, Lyonsdown Limited. teiss® is a registered trademark of Lyonsdown Ltd. VAT registration number: 830519543