Greater Boston Chamber of Commerce
bd_3360a0ce60c9ae96 · schema v1 · pii pii-v1
Full breach record for Greater Boston Chamber of Commerce →Greater Boston Chamber of Commerce notified members that an unauthorized third party accessed their accounts at outside billing vendors on September 10, 2025. The organization became aware of the incident on September 11, 2025. Affected data may include names, addresses, Social Security numbers, and bank account information. The organization engaged experts, enhanced security protocols, and is offering 24 months of credit monitoring and fraud assistance.
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Incident timeline
Sep 10, 2025
Begins
Sep 11, 2025
Discovered
Feb 5, 2026
Filed
vs. sector median
+2 wks slower
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- Maine State AGbd_4364ddf83ec140b32025-10-21 · +107dCandidate
- Massachusetts State AGbd_47e874e840d5d6d02025-10-21 · +107dVerified
- Vermont State AGbd_a21aa6d50a2ae90d2025-10-21 · +107dVerified
Filing propagation · 4 filings · 3 states
View merged incident ↗Pattern: first filing Oct 21 (ME), last Feb 5 (MA) — a 107-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.