HackingStolen CredentialsCustomer Data InvolvedIDENTITY_BASICPIILowContained
KLA CORPORATION
bd_de2fe3a8394583b5 · schema v1 · pii pii-v1
Full breach record for KLA CORPORATION →KLA Instruments, a subsidiary of KLA Corporation, disclosed a data breach occurring on or around August 5, 2025, where an unauthorized party accessed corporate systems. The incident compromised personal information including names and contact details. KLA notified law enforcement, engaged forensic experts, and is offering two years of credit monitoring via IDX to affected individuals across multiple US states.
Vermont clock✗ VT AG >45 bday13 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.
Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
Source provenance
- Source URL
- https://ago.vermont.gov/document/2025-11-07-kla-corporation-dba-kla-instruments-filmetrics-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Nov 7, 2025
- Raw hash
- 7b7fbf06d32429fd870903fe858b6d21ef52c5dbe2324c50106e140b46583c20
Reporting entity
- Name
- KLA CORPORATIONnorm: kla
- Domain
- kla.com
Victim entity
- Name
- KLA CORPORATIONnorm: kla
- Domain
- kla.com
Incident
- Discovered
- Aug 5, 2025
- Materiality determined
- —
- Notification sent
- Nov 7, 2025
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICPII
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid Accounts
- Threat actor
- External
- Regulator citations
- Notified federal law enforcement
- Initial access
- valid_credentials
Compliance
- Time to disclose
- 13 weeks(94 days from discovery to filing)
- Compliance flags
- VT AG >45 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.