HackingVulnerability ExploitZero-DaySupply Chain (3P Vendor)Data ExfiltratedIDENTITY_BASICIDENTITY_GOVERNMENTMediumContained
Westat, Inc.
bd_03476d52a3c7f670 · schema v1 · pii pii-v1
Full breach record for Westat, Inc. →Westat, Inc. notified consumers of a data breach involving its third-party vendor, Progress MOVEit. A zero-day vulnerability allowed unauthorized copying of data from a MOVEit server between May 28-29, 2023. Impacted data included names, dates of birth, and Social Security numbers. Westat engaged forensic specialists, applied patches, and offered credit monitoring services.
Vermont clock⏱ VT AG >14 bday7 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.
This filing is one of 5 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (4) · sorted by filing gap
- bd_8839ed78d8414049Montana State AGfiled 2023-07-21Candidate
- bd_be6506ff947b42aaMaine State AGfiled 2023-07-21Candidate
- bd_5b63e0b82f445a71HHS OCRfiled 2023-10-13(84d gap)Verified
- bd_0a5c6e5ef62bfc8dHHS OCRfiled 2023-11-03(105d gap)Candidate
Source provenance
- Source URL
- https://ago.vermont.gov/document/2023-07-21-westat-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 21, 2023
- Raw hash
- 37e317410a38ee64d690cb7098031f07c38d872574c5731799d15bb38d9de556
Reporting entity
- Name
- Westat, Inc.norm: westat
Victim entity
- Name
- Westat, Inc.norm: westat
Incident
- Discovered
- May 30, 2023
- Materiality determined
- —
- Notification sent
- Jul 21, 2023
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICIDENTITY_GOVERNMENT
- Attack vector
- Third-Party / Supply Chain
- MITRE ATT&CK
- T1195 Supply Chain CompromiseT1190 Exploit Public-Facing ApplicationT1074 Data Staged
- Threat actor
- ExternalFinancial
- Initial access
- exploit_public_facing
Compliance
- Time to disclose
- 7 weeks(52 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.
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.