HackingFinancial ServicesTechnologyFinanceVulnerability ExploitCapture Stored DataZero-DayData ExfiltratedCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

Financial Institution Service Corporation

bd_6e00e5b1fc258dae · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 31, 2023

Filed

Oct 9, 2023

To disclose

19 weeks

Affected

10state residents only

Linked

9 filings

Confidence

66%

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

Financial Institution Service Corporation (FISC) reported a data breach involving the MOVEit Transfer server. An unknown actor exploited a zero-day vulnerability to access the server between May 30-31, 2023, and exfiltrated data. The breach affected approximately 10 New Hampshire residents affiliated with member financial institutions. FISC notified law enforcement, regulators, and affected individuals, offering 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d19 weeks discovery → filing

Incident timeline

undetected · 1 days

discovery → filing · 19 weeks / 131 days

May 30, 2023

Begins

May 31, 2023

Discovered

Oct 9, 2023

Filed

vs. sector median

+10 wks slower

This filing is one of 9 about the same incident.View merged incident

A leak claim by cl0p about this victim predates this filing by 94 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Vermont State AGbd_443bd0900c23f1b92023-10-09Verified
Maine State AGbd_9fd9aa3388a492ce2023-10-09Candidate
Vermont State AGbd_38cc1d86a14473772023-10-04 · +5dCandidate
New Hampshire State AGbd_f28ceba937a622082023-10-04 · +5dCandidate

Show 4 more filings ↓up to 17d gap

California State AGbd_6414ec0eb2b443b12023-09-28 · +11dVerified by operator
Vermont State AGbd_ab6b5f1c183753242023-09-28 · +11dCandidate
Delaware State AGbd_f567b7260ba921f02023-09-28 · +11dVerified by operator
Vermont State AGbd_3f02b20407b109de2023-09-22 · +17dCandidate

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 ServicesllmTechnologyllm

Discovered: May 31, 2023
Breach occurred: May 30, 2023 – May 31, 2023
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Sep 22, 2023
Affected individuals: 10state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: promptly reported the event to federal law enforcement and its primary federal regulators
Initial access: exploit_public_facing

During the incident: Moved quickly to investigate and respond
Assess the security of FISC’s systems, including its MOVEit Transfer server
Notify potentially affected member financial institutions
Promptly reported the event to federal law enforcement and its primary federal regulators
Providing access to credit monitoring services for 12 months, through Kroll
Established a toll-free call center for notified individuals
Changes made: Reviewing and enhancing our existing policies and procedures related to data privacy
Apply available patching and undertook recommended mitigation steps
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 19 weeks(131 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 5 states

View merged incident ↗

Vermont State AGSep 22 · first

California State AG+6d

Vermont State AG+6d

Delaware State AG+6d

Vermont State AG+12d

New Hampshire State AG+12d

Vermont State AG+17d

Maine State AG+17d

New Hampshire State AG+17d · this page

Pattern: first filing Sep 22 (VT), last Oct 9 (NH) — a 17-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.

Source URL: https://mm.nh.gov/files/uploads/doj/remote-docs/financial-institution-service-corporation-20231009.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 9, 2023
Raw hash: 36ad7a38b0c436d030ad0643222413cba117dadb2f143e7c17abf090fa28b767

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityFinancial Institution Service Corporation

Victim entityFinancial Institution Service Corporation

Incidentdiscovered May 31, 2023

Stated responseMoved quickly to investigate and respond

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov