Blog | G5 Cyber Security

Ransomware gang breached CNA’s network via fake browser update

US insurance company CNA Financial has provided a glimpse into how Phoenix CryptoLocker operators breached its network, stole data, and deployed ransomware attack that hit its network in March 2021. The attackers first breached an employee’s workstation on March 5 using a fake and malicious browser update delivered via a legitimate website. CNA said it began operating “in a fully restored state”” two months ago

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