Find notable cyber news and cases, enriched with sources, timelines, and signals.
Home Browse News Feed Stats Watchlists Beta About Contact

Marquis Software Solutions hit by ransomware attack

Incident
First reported
Last updated
Happening score
H score 55
1 unique sources, 3 articles

Summary

Hide ▲

Marquis Software Solutions disclosed that its August 14, 2025 ransomware attack exposed personal data tied to 74 U.S. banks and credit unions and affected over 400,000 customers. The company says attackers breached its network through a SonicWall firewall and stole files containing information received from business customers. Marquis says there is no evidence of misuse or publication of the data at this time. The incident remains centered on a victim-focused breach of a financial software provider and the downstream impact on its banking and credit union customers.

Cases

SonicWall cloud backup theft and Marquis downstream intrusion (3)

Related Happenings

Finnish arrest and U.S. charges in Bouquet Scattered Spider case

Law Enforcement
First: 28.04.2026 18:39 Last: 28.04.2026 18:39 Sources 1

About this happening: **Finnish law enforcement** arrested **Bouquet**, and **U.S. federal prosecutors** later charged him in a cross-border **Scattered Spider** cybercrime case. The charges include **...

Open Happening

Marquis data breach exposing 672,075 people's personal and financial information

Data Leak
First: 18.03.2026 17:32 Last: 18.03.2026 17:32 Sources 1

How related: After breaching its network, the attackers stole a wide range of personal and financial information, including affected individuals' names, dates of birth, addresses, phone numbers, Social Security numbers, Taxpayer Identification Numbers, and financial account information without security or access codes.

About this happening: Marquis disclosed a **data breach** that exposed personal and financial records tied to **672,075 people**, increasing the risk of identity theft and account fraud. The stolen inf...

Open Happening

US District Court for the Eastern District of Texas complaint filed seeking damages against SonicWall on vendor-liability exposure over a cyber breach

Regulatory/Legal Action
First: 27.02.2026 00:02 Last: 27.02.2026 00:02 Sources 1

How related: In a complaint filed with the US District Court for the Eastern District of Texas on Feb. 23, the company laid the blame for its attack on SonicWall and is now seeking damages.

About this happening: Marquis filed a **federal complaint** in **US District Court for the Eastern District of Texas** against **SonicWall**, seeking **damages** over a **data breach** it says the vend...

Open Happening

Marquis Software Solutions lawsuit against SonicWall over cybersecurity failures

Regulatory/Legal Action
First: 25.02.2026 17:54 Last: 25.02.2026 17:54 Sources 1

How related: 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.

About this happening: Marquis Software Solutions filed a lawsuit against **SonicWall**, alleging **gross negligence** and **misrepresentation** tied to a **ransomware attack** that disrupted operations...

Open Happening

Peter Williams sentencing in zero-day theft case

Law Enforcement
First: 25.02.2026 10:21 Last: 25.02.2026 10:21 Sources 1

About this happening: Peter Williams, a former L3Harris/Trenchant employee, was sentenced to roughly seven years in prison after pleading guilty to stealing and selling at least eight zero-day exploits...

Latest development: 25.02.2026 10:49

Peter Williams, a former L3Harris employee, is sentenced to a little over seven years in prison, three years of supervised release, and forfeiture of illicit proceeds after pleading guilty in October 2025 to stealing and selling eight zero-day exploits to Operation Zero in exchange for up to $4 million in cryptocurrency.

Open Happening

Timeline

  1. 18.03.2026 17:32 2 articles · 2mo ago

    Marquis discloses 672,075-person data theft and 74-bank disruption

    Victim Impact Update

    Marquis, a Texas-based financial services provider, disclosed that a ransomware gang stole personal and financial data from 672,075 people after an August 14, 2025 attack on a compromised SonicWall firewall, and the incident disrupted operations at 74 banks across the United States; breach notifications were filed in early December, and affected files were reviewed on December 10, 2025.

    Show sources
    Open in new tab
  2. 29.01.2026 19:57 2 articles · 3mo ago

    Marquis Software Solutions hit by ransomware attack

    Initial Disclosure

    In **August 2025**, **Marquis Software Solutions** suffered a **ransomware attack** that affected its systems and downstream bank and credit union customers. The event was later linked to **firewall configuration data** stolen through **SonicWall's MySonicWall portal**.

    Show sources
    Open in new tab