Microsoft, the Department of Justice and others have thwarted the use of the Lumma Stealer malware that globally has infected nearly 400,000 computers.

In a blog post, Microsoft revealed that a federal court in Georgia authorized its digital crimes unit to take down, block, or suspend nearly 2,300 websites essential to Lumma’s operations. The company also worked closely with local and international law enforcement agencies to dismantle the malware’s infrastructure.

Microsoft said Wednesday that it broke down the Lumma Stealer malware project with the help of law enforcement officials across the globe.