HackingFinancial ServicesTechnologyFinanceVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedFinancial accountIdentity (basic)LowContained

STATE STREET CORPORATION

bd_bef5c97e12364fef · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 20, 2023

Filed

Jan 31, 2024

To disclose

6 weeks

Affected

1state residents only

Linked

4 filings

Confidence

66%

Full breach record for STATE STREET CORPORATION →23 incidents on file

State Street Corporation notified the NH AG of a breach involving its third-party provider Fiserv. An unauthorized actor exploited a vulnerability in MOVEit Transfer between May 27-31, 2023, accessing check images containing financial account info for one NH resident. State Street discovered the incident on Dec 20, 2023, and notified the individual on Jan 31, 2024. Remediation included patching and offering credit monitoring.

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Incident timeline

undetected · 207 days

discovery → filing · 6 weeks / 42 days

May 27, 2023

Begins

Dec 20, 2023

Discovered

Jan 31, 2024

Filed

vs. sector median

2 wks faster

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

Part of FISERV, INC. supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_8e6752fdd7e9fdd72024-02-01 · +1dCandidate
Massachusetts State AGbd_804f78a5a9844cb02024-02-05 · +5dVerified
Massachusetts State AGbd_6d515c8328a47dcf2024-02-07 · +7dVerified

Name: STATE STREET CORPORATION
norm: state street

Name: STATE STREET CORPORATION
norm: state street
Industry: Financial ServicesllmTechnologyllm

Discovered: Dec 20, 2023
Breach occurred: May 27, 2023 – May 31, 2023
Undetected for: 207 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 31, 2024
Affected individuals: 1state-resident count only
Data types: Financial accountIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General
Third party: via Fiserv
Initial access: exploit_public_facing

During the incident: Launched a comprehensive investigation
Identify individuals affected by the incident
Notified regulatory bodies
Arranged for complimentary identity monitoring service through Kroll
Changes made: Service Provider has remediated all technical vulnerabilities and applied patches to the MOVEit Transfer application
Mobilized a technical response team to examine the relevant MOVEit Transfer systems and to prevent any further vulnerabilities
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(42 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

New Hampshire State AGJan 31 · first · this page

Indiana State AG+1d

Massachusetts State AG+5d

Massachusetts State AG+7d

Pattern: first filing Jan 31 (NH), last Feb 7 (MA) — 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://mm.nh.gov/files/uploads/doj/remote-docs/state-street-20240131.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 31, 2024
Raw hash: 57361203bff0c5986a437b1d73f461ad087cda9dbc9ec66e774a434f4a8cc571

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitySTATE STREET CORPORATION

Victim entitySTATE STREET CORPORATION

Incidentdiscovered Dec 20, 2023

Stated responseLaunched a comprehensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov