HackingFinancial ServicesTechnologyFinanceVulnerability ExploitCapture Stored DataZero-DayData ExfiltratedTargetedIdentity (basic)Financial accountMediumContained

Financial Institution Service Corporation

bd_6c9e179c96a550ba · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 31, 2023

Filed

Sep 29, 2023

To disclose

17 weeks

Affected

9,870state residents only

Linked

4 filings

Confidence

66%

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

Financial Institution Service Corporation (FISC) notified South Carolina regulators of a breach involving the MOVEit Transfer tool. An unknown actor exploited zero-day vulnerabilities to access the server between May 30-31, 2023, exfiltrating names, addresses, and auto loan account numbers. FISC engaged forensic specialists, reported to law enforcement, and offered 12 months of Kroll identity monitoring. A specific count of Rhode Island residents (54) was noted.

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Leak gap clock⏱ Leak >30d17 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 1 days

discovery → filing · 17 weeks / 121 days

May 30, 2023

Begins

May 31, 2023

Discovered

Sep 29, 2023

Filed

vs. sector median

+9 wks slower

This filing is one of 4 about the same incident.View merged incident

A leak claim by cl0p about this victim predates this filing by 84 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecl0pbd_868874c89834e55b2023-07-07 · +84dVerified by operator

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_ee6604ed129e9a642023-09-22 · +7dVerified
Montana State AGbd_f0522e8399768dcd2023-09-22 · +7dCandidate

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: —
Affected individuals: 9,870state-resident count only
Data types: Identity (basic)Financial account
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
Initial access: exploit_public_facing

During the incident: Moved quickly to apply available patching and undertook recommended mitigation steps
Launched an investigation, with the assistance of third-party cybersecurity specialists
Undertook a time-intensive review of the data stored on the server
Promptly reported the event to federal law enforcement
Providing you with access to twelve (12) months of identity monitoring services provided by Kroll
Changes made: Reviewing and enhancing our existing policies and procedures related to data privacy
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(121 days from discovery to filing)
Compliance flags: Leak >30dSC CRA notice due
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGSep 22 · first

Montana State AGSep 22 · first

South Carolina State AG+7d · this page

Pattern: first filing Sep 22 (MA), last Sep 29 (SC) — a 7-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://consumer.sc.gov/sites/consumer/files/Documents/Security%20Breach%20Notices/FinancialInstitutionServiceCorporation.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 29, 2023
Raw hash: a75c6f5db0cddc1ab7cc934510d140d707fd14c6ade8a085d3da582ef43081a2

Linked disclosures

Ransomware claims (1)

Regulatory filings (2) · sorted by filing gap

Reporting entityFinancial Institution Service Corporation

Victim entityFinancial Institution Service Corporation

Incidentdiscovered May 31, 2023

Stated responseMoved quickly to apply available patching and undertook recommended mitigation steps

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov