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Medium

CoVantage Credit Union Customer Data Exposed via Marquis Software Breach

CoVantage Credit Union customer data was compromised as a result of the ransomware attack on Marquis Software Solutions on August 14, 2025.

Key points

  • Impacted by the Marquis Software Solutions ransomware attack on August 14, 2025.
  • Personal and financial data of CoVantage Credit Union customers exposed through the third-party vendor.
  • Data included names, addresses, Social Security numbers, financial information, and dates of birth.

Connected intelligence

Signal brief

Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.

02

Likely method

Ransomware

Malware activity

03

Potential impact

Data Exposure

Confidentiality, Availability

Published
Aug 14, 2025
Updated
Jun 26, 2026
Confidence
Medium
Evidence
1 source

Structured assessment

Signal analysis

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Threat source

Malware activity

Watch ransomware, endpoint compromise and business interruption exposure.

  • Source type: supplier or third-party involvement

Business impact

Potential operational disruption
Impact area
Confidentiality, Availability
Likely asset
User or customer data

Mentioned entities

CovantagecuData DisclosureExposedUnionMarquis Software SolutionsMarquisCoVantageApproximatelyImpactedPersonal and

Quick context

Questions about this signal

What happened in this signal?

CoVantage Credit Union customer data was compromised as a result of the ransomware attack on Marquis Software Solutions on August 14, 2025. Marquis, a third-party vendor providing services to CoVantage, suffered a breach that exposed sensitive personal and financial information, including names, addresses, Social Security numbers, financial information, and dates of birth. Approximately 160,000 CoVantage members were affected.

When was this signal reported?

Shadow Tier lists Aug 14, 2025 as the signal date.

Which organization is connected to this signal?

Covantagecu is the organization connected to this public signal.

Explore Covantagecu
Which attack pattern is relevant?

This signal is connected to current ransomware incidents based on its reported incident context.

Explore current ransomware incidents
Which impact area is relevant?

This signal is connected to data exposure and breach intelligence based on its reported consequences.

Explore data exposure and breach intelligence