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Hackers Trying to Auction Source Code Stolen From CD Projekt Red

The same hackers appear to have leaked source code to Gwent: The Witcher Card Game, which is now circulating on underground forums as a free download.

 & Michael Kan Principal Reporter

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The hackers who breached CD Projekt Red may be trying to auction the developer’s stolen source code for the Witcher 3 and Cyberpunk 2077 on the digital black market. 

An auction for the stolen source code was spotted in a Russian hacking forum on the dark web, according to “VX-Underground,” a security researcher who tracks malware. The starting bid for the data and other internal information is going for $1 million. "They are also selling immediately for $7,000,000," VX-Underground added.

The Russian hacking forum is generally restricted to users who pay $100 to join, limiting the auction’s reach. But to prove the stolen data is real, the same hackers allegedly leaked the source code to Gwent: The Witcher Card Game, which CD Projekt Red released in 2018. A 21GB download for the Gwent code has since been circulating on other forums on the open web. 

Motherboard and ZDNet obtained copies of the leaked Gwent code, and say it looks real. The archive also contains a note that claims more data will be released “tomorrow.”

Still, the auction may not fetch much money. Trying to reuse or build a game from CD Projekt’s Red stolen assets would only spark a copyright infringement lawsuit from the developer. Nevertheless, the hackers claim to have also stolen important HR, accounting, and investor-related documents from the gaming company.  

CD Projekt Red didn’t immediately respond to a request for comment. However, the company previously said it has no plans to pay a ransom demanded by the hackers. “We will not give in to the demands nor negotiate with the actor, being aware that this may eventually lead to the release of the compromised data,” the developer posted on Monday.

According to security researcher Fobian Wosar, the hackers behind breach likely aren't disgruntled gamers angry about Cyberpunk 2077's troubled release, but real cybercriminals who've launched ransomware attacks before.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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