DisclosureLens
HackingTechnologyInformationStolen CredentialsCustomer Data InvolvedCredentialsIdentity (basic)LowActive

Tokyo Electron U.S. Holdings

bd_0938996c667d5706 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 19, 2025

Filed

Mar 21, 2025

To disclose

4 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

67%
Full breach record for Tokyo Electron U.S. Holdings →

Tokyo Electron U.S. Holdings, Inc. notified consumers of a cyber incident discovered on Feb 19, 2025. An unauthorized third party accessed systems and copied business email information, including User IDs, passwords, and contact details. No identity theft or fraud has been indicated. Passwords were reset and safeguards enhanced. Investigation is ongoing.

Vermont clock⏱ VT AG >14 bday4 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

discovery → filing · 4 weeks / 30 days

Feb 19, 2025

Discovered

Mar 21, 2025

Filed

vs. sector median

14 wks faster

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

Filing propagation · 3 filings · 3 states

View merged incident ↗
Maryland State AGMar 20 · first
Vermont State AG+1d · this page
Oregon State AG+14d

Pattern: first filing Mar 20 (MD), last Apr 3 (OR) — a 14-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.