Signal
Marquis ransomware gang steals data of over 670,000 people in 2025 breach
Evidence first: scan the strongest sources, then decide whether to go deeper.
Published 2026-03-18 15:32 UTCUpdated 2026-03-18 16:51 UTC
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cveexploitsbreachesmalwarethreat_actorssecurity_tooling
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Evidence trail (top sources)
top sources (2 domains)domains are deduped. counts indicate coverage, not truth.2 top sources shown
limited source diversity in top sources
Overview
In August 2025, Marquis, a Texas-based financial software vendor, suffered a ransomware attack that compromised the data of more than 670,000 individuals and disrupted operations at 74 banks and financial institutions across the U.S. The breach involved a vendor providing software that enables communication between...
Entities
Marquis
Score total
0.99
Momentum 24h
2
Posts
2
Origins
2
Source types
1
Duplicate ratio
0%
Why now
- The breach was publicly disclosed recently, renewing attention on vendor-related cybersecurity risks.
- Financial institutions continue to face targeted ransomware attacks affecting customer data.
- Understanding this incident aids in improving defenses against similar future attacks.
Why it matters
- The breach exposed sensitive data of over 670,000 individuals, raising privacy and security concerns.
- It disrupted operations at 74 financial institutions, highlighting risks in vendor software supply chains.
- The incident underscores the ongoing threat ransomware gangs pose to critical financial infrastructure.
LLM analysis
Topic mix: lowPromo risk: lowSource quality: medium
Recurring claims
- Marquis ransomware gang stole data of over 670,000 people in August 2025 cyberattack
How sources frame it
- Bleepingcomputer_all: neutral
All evidence
All evidence
Bank software vendor Marquis says more than 670,000 impacted by August breach
The Record (Recorded Future News) · therecord.media · 2026-03-18 16:51 UTC
Marquis: Ransomware gang stole data of 672K people in cyberattack
bleepingcomputer_all · bleepingcomputer.com · 2026-03-18 15:32 UTC
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Posts loaded: 0Publishers: 2Origin domains: 2Duplicates: -
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Top publishers (this list)
- The Record (Recorded Future News) (1)
- bleepingcomputer_all (1)
Top origin domains (this list)
- therecord.media (1)
- bleepingcomputer.com (1)