Why a recent supply-chain attack singled out security firms Checkmarx and Bitwarden

It has been a bad six weeks for security firm Checmarx. Over the past 40 days, it has been the victim of at least one supply-chain attack that delivered malware to customers on two separate occasions. Now it has been hit by a ransomware attack from prolific fame-seeking hackers.

The streak of misfortunes started on March 19, with the supply-chain attack of Trivy, a widely used vulnerability scanner. The attackers behind the breach first breached the Trivy GitHub account and then used their access to push malware to Trivy users, one of which was Checkmarx. The pushed malware scoured infected machines for repository tokens, SSH keys, and other credentials.

Both a target and delivery mechanism

Four days later, Checkmarx’s GitHub account was compromised and began pushing malware to the security firm’s users. The company contained and remediated the breach and replaced the malware with the legitimate apps. Or so Checkmarx thought.

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