HackingVulnerability ExploitStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedTargetedPIIIDENTITY_BASICLowContained
Western Alliance Bank
bd_c53d68dc954452b4 · schema v1 · pii pii-v1
Full breach record for Western Alliance Bank →Western Alliance Bank notified the New Hampshire Attorney General on March 14, 2025, of a data security incident involving the personal information of two NH residents. A threat actor exploited an unknown vulnerability in a third-party secure file transfer software used by the bank to access files between October 12-24, 2024. The bank detected the unauthorized access on January 27, 2025, engaged forensic investigators, notified law enforcement, and is offering credit monitoring to affected individuals.
This filing is one of 9 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (8) · sorted by filing gap
- bd_06380a907e1b2dceCalifornia State AGfiled 2025-03-14Candidate
- bd_1ff1a0aa9cf88a3eMaryland State AGfiled 2025-03-14Verified
- bd_31bf2692dfc20e2eMontana State AGfiled 2025-03-14Verified
- bd_72b6c4555f835088Maine State AGfiled 2025-03-14Verified
Show 4 more filings ↓Show fewer ↑up to 109d gap
- bd_1e2bedd75bd91a03Washington State AGfiled 2025-06-30(108d gap)Verified
- bd_aa0c3c3710d65700Oregon State AGfiled 2025-06-30(108d gap)Verified
- bd_ca35ca5f0299f314New Hampshire State AGfiled 2025-06-30(108d gap)Verified
- bd_f8043b0f67779b8fTexas State AGfiled 2025-07-01(109d gap)Verified
Source provenance
- Source URL
- https://mm.nh.gov/files/uploads/doj/remote-docs/western-alliance-bank-20250314.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Mar 14, 2025
- Raw hash
- 0c7fdfea9bf4d0e85754cda4cd34e83b3780529d9d741349bf631a5ded464481
Reporting entity
- Name
- Western Alliance Banknorm: western alliance bank
Victim entity
- Name
- Western Alliance Banknorm: western alliance bank
Incident
- Discovered
- Jan 27, 2025
- Materiality determined
- Feb 21, 2025
- Notification sent
- Mar 14, 2025
- Affected individuals
- 2
- Data types
- PIIIDENTITY_BASIC
- Attack vector
- Third-Party / Supply Chain
- MITRE ATT&CK
- T1195 Supply Chain CompromiseT1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
- Threat actor
- ExternalFinancial
- Regulator citations
- Notified law enforcement
- Initial access
- supply_chain
Compliance
- Time to disclose
- 7 weeks(46 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.