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

Linked

12 records

Confidence

75%

Full breach record for Financial Institution Service Corporation →4 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.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 31, 2023 → Filed with AG Sep 28, 2023120d ⏱ ME AG >30d17 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

This filing is one of 12 records about the same incident.View merged incident

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

A leak claim by cl0p about this victim was first seen 83 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecl0pbd_868874c89834e55b2023-07-07 · +83dVerified by operator

Regulatory filings (9) · sorted by filing gap

South Carolina State AGbd_6c9e179c96a550ba2023-09-29 · +1dVerified by operator
Indiana State AGbd_267310e2d32558712023-09-22 · +6dVerified
Maine State AGbd_3c34af888523115e2023-09-22 · +6dVerified by operator
Washington State AGbd_464efdbae9f239d32023-09-22 · +6dVerified by operator

Show 5 more filings ↓up to 270d gap

California State AGbd_4a83bdbad5aeec582023-09-22 · +6dVerified by operator
Oregon State AGbd_e8d9465614e4a1272023-09-22 · +6dVerified by operator
Massachusetts State AGbd_ee6604ed129e9a642023-09-22 · +6dVerified by operator
Montana State AGbd_f0522e8399768dcd2023-09-22 · +6dVerified by operator
Illinois State AGbd_74fa8344bc4f530d2023-01-01 · +270dVerified by operator

Showing first 10 of 11 linked disclosures.

Name: Financial Institution Service Corporation
norm: financial institution service
Domain: fiscdp.com

Name: Financial Institution Service Corporation
norm: financial institution service
Domain: fiscdp.com
Industry: Financial Servicesllm

Discovered: May 31, 2023
Breach occurred: May 30, 2023
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Sep 28, 2023
Affected individuals: 353,309state + nationwide
Data types: Identity (basic)Financial accountFinancial credentials
Data elements: Financial account number
Attack vector: Unauthorized Access

Changes made: Offered 12 months of identity monitoring and restoration services through Kroll.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(120 days from discovery to filing)
Compliance flags: ME AG >30d · 120dLeak >30d
Discovery-date grounding: 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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: May 31, 2023
→ Filed with AG: Sep 28, 2023
120d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 31, 2023 → Filed with AG: Sep 28, 2023	120d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 9 states

View merged incident ↗

Illinois State AGJan 1 · first

Indiana State AG+264d

Maine State AG+264d

Washington State AG+264d

California State AG+264d

Oregon State AG+264d

Massachusetts State AG+264d

Montana State AG+264d

Maine State AG+270d · this page

South Carolina State AG+271d

Pattern: first filing Jan 1 (IL), last Sep 29 (SC) — a 271-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 11 — the full spread may be wider.

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.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/b6244db6-854f-4582-88d7-d9d13ad4aaee.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 28, 2023
Raw hash: 154f3a37dbd42a64a2ad4f35dec81a7662295279b5cc401f9a105e9bfc68ecf2

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityFinancial Institution Service Corporation

Victim entityFinancial Institution Service Corporation

Incidentdiscovered May 31, 2023

Stated responseOffered 12 months of identity monitoring and restoration services through Kroll.

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov