Main Street Bank
bd_07d4011b49bf7cc7 · schema v1 · pii pii-v1
Full breach record for Main Street Bank →208 incidents on fileMain Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-09-12. 2 Massachusetts residents were affected.
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Incident timeline — partial
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Breach window unknown
Sep 12, 2025
Filed
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Corroborated · see linked filings
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Linked disclosures
Why this link?Regulatory filings (2) · sorted by filing gap
- Massachusetts State AGbd_d82c75b4d061bc082025-09-16 · +4dCandidate
- Massachusetts State AGbd_ac5bc9c1adecbd4f2025-09-26 · +14dCandidate
Filing propagation · 3 filings
View merged incident ↗Pattern: first filing Sep 12 (MA), last Sep 26 (MA) — a 14-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.