DisclosureLens
HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Financial accountFinancial credentialsHighContained

Financial Institution Service Corporation

bd_04c337c25e3d94e6 · schema v1 · pii pii-v1

Severity

High

Discovered

May 31, 2023

Filed

Sep 28, 2023

To disclose

17 weeks

Affected · nationwide

353,30997 in this filing

Confidence

75%
Full breach record for Financial Institution Service Corporation →10 incidents on file

Financial Institution Service Corporation reported a data breach affecting 97 Maine residents due to a third-party incident involving MOVEit Transfer software. The breach, which occurred on May 30, 2023, and was discovered the next day, exposed names and financial account or card numbers with associated security codes. The company notified affected individuals on September 28, 2023, and offered 12 months of identity monitoring and restoration services through Kroll.

Maine clockDiscovered May 31, 2023 → Filed with AG Sep 28, 2023120d ✗ ME AG >90d17 weeks discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 1 days
discovery → filing · 17 weeks / 120 days

May 30, 2023

Begins

May 31, 2023

Discovered

Sep 28, 2023

Filed

vs. sector median

+9 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed353,309 affectedView incident
A leak claim by cl0p about this victim predates this filing by 83 days.View originating leak claim

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.