DisclosureLens
UnknownFinancial ServicesFinanceCustomer Data InvolvedFinancial accountFinancial credentialsPCILowContained

St. Mary's Credit Union

bd_86bfc42f96996992 · schema v1 · pii pii-v1

Severity

Low

Discovered

Filed

Jan 30, 2026

To disclose

Affected

Not disclosed

Linked

3 filings

Confidence

67%
Full breach record for St. Mary's Credit Union357 incidents on file

St. Mary's Credit Union notified members that their ATM/Debit cards may have been involved in a security incident reported by Mastercard, potentially permitting unauthorized access to funds. The Credit Union lowered daily transaction limits, issued new cards, and deactivated old cards by February 18, 2026. No specific dates of occurrence or discovery were provided in the notice.

Incident timeline — partial

? — ?

Breach window unknown

Jan 30, 2026

Filed

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings

View merged incident ↗
Massachusetts State AGJan 16 · first
Massachusetts State AG+14d · this page

Pattern: first filing Jan 16 (MA), last Jan 30 (MA) — a 14-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.