HackingProfessional ServicesProfessional ServicesVulnerability ExploitData ExfiltratedCustomer Data InvolvedSupply Chain (3P Vendor)Identity (basic)Government IDMediumContained

American Civil Liberties Union Foundation, Inc.

bd_bf9828d37534b528 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 22, 2023

Filed

Jul 21, 2023

To disclose

29 days

Affected · nationwide

5754 in this filing

Confidence

66%

ACLU Foundation notified Montana residents of a data breach involving third-party vendor Pension Benefit Information, LLC. Attackers exploited a vulnerability in MOVEit Transfer software to access donor data including names, DOBs, and SSNs. 575 individuals affected. 24 months credit monitoring offered.

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Incident timeline

undetected · 24 days

discovery → filing · 29 days

May 29, 2023

Begins

Jun 22, 2023

Discovered

Jul 21, 2023

Filed

vs. sector median

14 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed575 affectedView incident

Name: American Civil Liberties Union Foundation, Inc.
norm: american civil liberties union foundation

Name: American Civil Liberties Union Foundation, Inc.
norm: american civil liberties union foundation
Industry: Professional Servicesllm

Discovered: Jun 22, 2023
Breach occurred: May 29, 2023 – May 30, 2023
Undetected for: 24 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 21, 2023
Affected individuals: 575state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: PBI alerted law enforcement
Initial access: exploit_public_facing

During the incident: Working closely with TIAA Kaspick to ensure that all necessary steps were being taken by PBI and/or TIAA Kaspick to investigate the incident
Reviewed our own systems and determined that they are not impacted by the MOVEit vulnerability
Offering to provide you twenty-four (24) months of credit monitoring services at no cost to you
Changes made: ACLUF will continue to assess and update our security practices in order to help prevent this type of incident from occurring again
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-631.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 21, 2023
Raw hash: 4bab8704c2f4811102557ead5ba1718a1c5bf76e012e9a70ec7e4a668dba14ea

Reporting entityAmerican Civil Liberties Union Foundation, Inc.

Victim entityAmerican Civil Liberties Union Foundation, Inc.

Incidentdiscovered Jun 22, 2023

Stated responseWorking closely with TIAA Kaspick to ensure that all necessary steps were being taken by PBI and/or TIAA Kaspick to investigate the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov