High Financial Services · March 2026

Marquis

Financial services firm Marquis disclosed that a ransomware attack led to the theft of personal data for approximately 672,000 individuals.

Records Affected

Approximately 672,000

Sector

Financial Services

Data types exposed

Names Social Security Numbers Financial Account Information Personal Information
Financial services firm Marquis disclosed a ransomware attack that resulted in the theft of personal data for approximately 672,000 individuals.
The compromised data reportedly includes personally identifiable information associated with the firm’s financial services operations. Marquis has begun notifying affected individuals in accordance with regulatory requirements.
Financial services firms continue to be high-value targets for ransomware groups due to the sensitivity of the data they hold and the regulatory pressure to resolve incidents quickly.

What a high-severity breach means

A high-severity breach means sensitive personal or account data was exposed and could be abused for fraud, account takeover, or targeted phishing. Affected individuals should treat it as time-sensitive.

Data exposed and why it matters

Names

Names alone are low-risk, but combined with other exposed fields they make phishing and impersonation more believable.

Government & national IDs

National identifiers are difficult to change and highly valuable for identity theft. Watch for accounts or credit opened in your name and consider a credit freeze where available.

Financial & payment data

Exposed payment or banking details can be used for unauthorised charges and financial fraud. Monitor statements closely and consider asking your bank to reissue affected cards.

Personal Information

This data can be combined with other exposed information to build a fuller profile of you, increasing the risk of targeted scams.

If you may be affected

  • Review recent bank and card statements for unfamiliar charges and report anything suspicious.
  • Consider placing a credit freeze or fraud alert to prevent accounts being opened in your name.
  • Use a password manager so every account has a unique, strong password.
  • Keep an eye on official communications from Marquis for confirmed guidance and remediation offers.

Frequently asked questions

Was Marquis affected by a data breach? ▾

Yes. This high-severity incident affecting Marquis (Financial Services sector, March 2026) has been triaged from publicly available information. A high-severity breach means sensitive personal or account data was exposed and could be abused for fraud, account takeover, or targeted phishing. Affected individuals should treat it as time-sensitive.

What data was exposed in the Marquis breach? ▾

Based on available reporting, the exposure involved Names, Social Security Numbers, Financial Account Information and Personal Information. Review the "Data types exposed" section above for the full list, and treat any account tied to this data as potentially at risk.

How many people were affected by the Marquis breach? ▾

Current reporting indicates Approximately 672,000 were involved. Figures for breaches often change as investigations progress, so check back for updates.

What should I do if I use Marquis? ▾

Review recent bank and card statements for unfamiliar charges and report anything suspicious. Consider placing a credit freeze or fraud alert to prevent accounts being opened in your name. See the "If you may be affected" checklist above for the full set of recommended steps.

Monitoring exposure like this

ScruteX continuously monitors data breaches, leaked credentials, and dark-web exposure so organisations learn when their people, brand, or supply chain are caught up in an incident like this — often before it is widely reported. Explore how ScruteX tracks digital risk across the open, deep, and dark web.

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