On December 11, 2021, in partnership with the FBI and NSA, CISA announced a critical remote code execution vulnerability had been identified in the Apache Log4j software library. This vulnerability allowed a successful threat actor to take control of a network system and cause a variety of damage, including the ability to launch ransomware, steal and destroy victim information, deploy malware, and disrupt internal and infrastructure operational control. Insurance regulators from four states have recently issued guidance in response to the threat, and it is likely more insurance commissioners will follow suit.
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