HackingStolen CredentialsVulnerability ExploitSupply Chain (3P Vendor)Customer Data InvolvedData ExfiltratedIDENTITY_BASICFINANCIAL_ACCOUNTLowContained
NUCOR CORPORATION
bd_f92fdb8fcfe3ebf1 · schema v1 · pii pii-v1
Full breach record for NUCOR CORPORATION →Nucor Corporation disclosed a data breach affecting customers' names, bank account numbers, routing numbers, and deposit amounts. The incident stemmed from a vulnerability in a third-party file transfer software vendor. Unauthorized access occurred between May 26 and June 1, 2023. Nucor disabled access, applied a vendor fix, engaged external cybersecurity investigators, and offered two years of Equifax credit monitoring to affected individuals.
Vermont clock⏱ VT AG >14 bday29 days 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 3 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (2) · sorted by filing gap
- bd_6a06b9eb150003e9Maine State AGfiled 2023-07-03(3d gap)Candidate
- bd_b6fb6e4436443cf8New Hampshire State AGfiled 2023-07-03(3d gap)Verified
Source provenance
- Source URL
- https://ago.vermont.gov/document/2023-06-30-nucor-corporation-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jun 30, 2023
- Raw hash
- c2f51ae3680fab2868164aa5d2c77b6808a610520bbf4cb6ba12353dcbbd5483
Reporting entity
- Name
- NUCOR CORPORATIONnorm: nucor
- Domain
- nucor.com
Victim entity
- Name
- NUCOR CORPORATIONnorm: nucor
- Domain
- nucor.com
Incident
- Discovered
- Jun 1, 2023
- Materiality determined
- —
- Notification sent
- Jun 30, 2023
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICFINANCIAL_ACCOUNT
- Attack vector
- Third-Party / Supply Chain
- MITRE ATT&CK
- T1195 Supply Chain CompromiseT1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
- Threat actor
- ExternalFinancial
- Regulator citations
- notified, or will notify, state regulators and consumer reporting agencies
- Initial access
- supply_chain
Compliance
- Time to disclose
- 29 days(29 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.