HackingGovernmentGovernmentVulnerability ExploitCl0pData ExfiltratedTargetedSupply Chain (3P Vendor)Identity (basic)Government IDMediumContained

County of Allegheny

bd_406bec923dfc4e39 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 1, 2023

Filed

Jul 28, 2023

To disclose

8 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

66%

Full breach record for County of Allegheny →

Allegheny County, Pennsylvania, notified consumers of a data breach stemming from the MOVEit file transfer vulnerability exploited by the Cl0p ransomware group in May 2023. The incident involved the exfiltration of personal information, including names and Social Security numbers. The County engaged forensic experts, patched the vulnerability, and offered two years of complimentary credit monitoring and identity protection services to affected individuals.

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Vermont clock⏱ VT AG >14 bday8 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 · 4 days

discovery → filing · 8 weeks / 57 days

May 28, 2023

Begins

Jun 1, 2023

Discovered

Jul 28, 2023

Filed

vs. sector median

3 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_c8b7ec09df80b22c2023-07-28Verified

Name: County of Allegheny
norm: county of allegheny

Name: County of Allegheny
norm: county of allegheny
Industry: Governmentllm

Discovered: Jun 1, 2023
Breach occurred: May 28, 2023 – May 29, 2023
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Third-Party / Supply Chain· Cl0p
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 ChannelT1486 Data Encrypted for Impact
Threat actor: Cl0pExternalFinancial
Regulator citations: Notified law enforcement
Initial access: exploit_public_facing

During the incident: Blocked access to and from the MOVEit server
Implemented security measures recommended by Progress Software to patch the vulnerability
Engaged external cybersecurity experts to investigate the nature and scope of the incident
Conducted an extensive investigation to determine what information was involved
Notified law enforcement
Partnering with IDX to offer 24 months of complimentary credit monitoring
Changes made: Patched the vulnerability in MOVEit
Offered 24 months of complimentary credit monitoring and identity protection services to affected individuals
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(57 days from discovery to filing)
Compliance flags: VT AG >14 bday
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 · 2 filings · 2 states

View merged incident ↗

HHS OCRJul 28 · first

Vermont State AGJul 28 · first · this page

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://ago.vermont.gov/document/2023-07-28-allegheny-county-pennsylvania-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 28, 2023
Raw hash: 3d7fbe02cf880c8fb21aa8af388447504f05b8a8833c6fc8b9a7dc645b13323f

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCounty of Allegheny

Victim entityCounty of Allegheny

Incidentdiscovered Jun 1, 2023

Stated responseBlocked access to and from the MOVEit server

ComplianceVT AG >14 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov