• Marquis sues SonicWall over backup breach that led to ransomware attack February 25, 2026 10:54 AM 0 Marquis Software Solutions has filed a lawsuit against SonicWall, accusing the cybersecurity company of gross negligence and misrepresentation that allegedly led to a ransomware attack disrupting operations at 74 U • On August 14, 2025, hackers breached Marqui’s network in aransomware attackafter compromising a SonicWall firewall • The attacker stole files containing personal information received from business partners • The details included names, addresses, phone numbers, Social Security numbers, Taxpayer Identification Numbers, and financial account information • Marquis provides data analytics, CRM tools, compliance reporting, and digital marketing services, with a clientele that includes more than 700 banks, credit unions, and mortgage lenders • In January 2026, Marquisofficially accused SonicWallof security failures after determining that the hackers had not exploited an unpatched flaw in its firewall, as previously assumed

Article Summaries:

  • Marquis Software Solutions has filed a lawsuit against SonicWall, accusing the cybersecurity company of gross negligence and misrepresentation that allegedly led to a ransomware attack disrupting operations at 74 U.S. banks. On August 14, 2025, hackers breached Marqui’s network in a ransomware attack after compromising a SonicWall firewall. The attacker stole files containing personal information received from business partners. The details included names, addresses, phone numbers, Social Security numbers, Taxpayer Identification Numbers, and financial account information. Marquis provides dat

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