CNA Financial controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2021
CNA ransomware attack and reported ransom payment
In March 2021, CNA experienced a ransomware cyberattack that disrupted network access and followed the theft of company data. Public reporting stated that CNA paid more than $40 million to regain control of its network. The incident attracted attention because the reported payment was among the largest publicly disclosed ransomware payments at the time.