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Ransomware Hits Sinclair Broadcast Group, Disrupts TV Stations

Even as the company tries to contain the threat, Sinclair warns that the attack could continue to cause technical difficulties across member TV stations.

 & Michael Kan Principal Reporter

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One of the largest US operators of TV stations, Sinclair Broadcast Group, has suffered a ransomware attack that disrupted several news channels over the weekend. 

The ransomware managed to encrypt “certain servers and workstations,” which led to the outages, Sinclair Broadcast Group said in a statement on Monday. “Data also was taken from the company’s network,” the broadcaster added. “The company is working to determine what information the data contained and will take other actions as appropriate based on its review.”

The broadcaster first identified the attack on Saturday. The next day, several member stations under Sinclair Broadcast Group reported technical difficulties, which prevented various news channels from going on the air, according to The Record

In response, Sinclair Broadcast Group notified authorities and contacted a cybersecurity forensics firm to investigate the attack. Meanwhile, Sinclair’s own IT team has been working to contain the threat. Nevertheless, the broadcaster warns the ransomware infection could continue to disrupt IT systems at various TV stations. 

There’s a lot of unknowns about the attack. But hackers often launch ransomware attacks by exploiting vulnerabilities in a company’s web software or by phishing unsuspecting employees with a malicious email to gain computer access. The hackers will then install the ransomware on as many computers as possible, encrypting the information inside. To free the systems, a victim is asked to pay up, though it's not recommended that victims hand over any money.

It’s unclear if the hackers have already sent Sinclair Broadcast Group a ransom note demanding payment. A spokesperson for the broadcaster simply told PCMag: “We are working diligently to address the incident and to restore operations quickly and securely.”

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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