Sinclair TV Stations Taken Down in Ransomware Attack

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Early yesterday, TV broadcasts for Sinclair-owned channels went down across the U.S. in a ransomware attack. The company says it implemented its incident response plan and took measures to contain the incident. However, Sinclair also says the attack may continue to cause “disruption to parts of the Company’s business, including certain aspects of its provision of local advertisements by its local broadcast stations on behalf of its customers.”

The attack took down the Sinclair internal corporate network, email servers, phone services, and the broadcasting systems of local TV stations. The attack's widespread nature stems from the fact that sections of the Sinclair IT network were interconnected through the same Active Directory domain, allowing the attackers to reach broadcasting systems for local TV stations. The attack follows a company-wide password reset for IT resources shared by local stations in July after what it described as a “potentially serious network security issue.” (Cat…