Marquis Says Over 672,000 People Had Personal And Financial Data Stolen In Ransomware Attack

In Brief

Marquis, a exertion institution utilized by hundreds of banks to analyse and visualize their customers’ data, says hundreds of thousands of group had their individual and delicate financial accusation stolen successful a ransomware onslaught past year.

The Plano, Texas-based fintech institution is notifying astatine slightest 672,075 group that hackers stole their accusation during nan August 2025 cyberattack, according to a listing pinch Maine’s lawyer general’s office.

More than half of each those affected unrecorded successful Texas, according to a abstracted information breach announcement revenge in nan state.

The disclosure is nan fullest image yet of nan number of group affected by nan breach, which has not been antecedently reported.

The breach allowed hackers to bargain banking customers’ names, dates of birth, and postal addresses. The hackers besides stole customers’ financial information, specified arsenic slope accounts, debit, and in installments paper numbers. Marquis said nan hackers besides took customers’ Social Security numbers.

The fintech institution sued its firewall provider, SonicWall, successful February, accusing nan institution of information failings that allowed hackers to bargain captious accusation astir its firewalls, which hackers past utilized to discuss Marquis’ network, bargain data, and deploy ransomware.

In its lawsuit, Marquis said SonicWall created a vulnerability that allowed hackers to bargain its customers’ firewall configuration backup files, including Marquis’ own.

Marquis did not instantly remark erstwhile contacted by TechCrunch.

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