Marquis sues firewall provider SonicWall, alleges security failings with its firewall backup led to ransomware attack | TechCrunch

TechCrunch

by Zack Whittaker

February 24, 2026

AI-Generated Deep Dive Summary

Fintech giant Marquis has filed a lawsuit against its firewall provider SonicWall, alleging that a security breach at SonicWall enabled hackers to steal sensitive information about Marquis' firewalls, leading to a ransomware attack on the company's network. The suit, filed in the U.S. District Court for the Eastern District of Texas, seeks a jury trial and accuses SonicWall of failing to secure its backup service, which Marquis claims exposed critical security data for both itself and its customers. This breach allowed hackers to access emergency passcodes (scratch codes) that granted them entry into Marquis’ internal network, bypassing the firewall's intended protection. Marquis CEO Satin Mirchandani stated that the breach caused significant harm, including reputational damage and financial losses. The attack resulted in the theft of personally identifiable information from customers, such as names, dates of birth, postal addresses, bank account details, and Social Security numbers. Marquis revealed that it began notifying affected individuals in December 2025 about a breach discovered earlier that year. The lawsuit highlights a critical vulnerability in SonicWall's systems, which the company initially downplayed but later admitted had exposed all customer firewall backup files. According to Marquis, the breach was exacerbated by a code change in

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Originally published on TechCrunch on 2/24/2026