Fintech giant Marquis is suing its firewall provider SonicWall, claiming that an earlier breach allowed hackers to steal sensitive information about customer firewalls that led to a ransomware attack on Marquis’ network. The lawsuit, filed Monday in the U.S. District Court for the Eastern District of Texas, seeks a jury trial. It claims the 2025 breach at SonicWall “exposed critical security information for Marquis and every customer that used SonicWall’s firewall cloud backup service.” Marquis’ chief executive Satin Mirchandani told TechCrunch in a statement that SonicWall allegedly failed to secure its backup service, which caused the company to suffer “significant reputational, operational, and financial harm.” News of the lawsuit comes weeks after TechCrunch reported that Marquis was planning to seek compensation from SonicWall.…