DisclosureLens
UnknownInformationLow

Tokyo Electron U.S. Holdings

bd_dd1f610d532c2694 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 19, 2025

Filed

Apr 3, 2025

To disclose

6 weeks

Affected

793

Linked

3 filings

Confidence

95%
Full breach record for Tokyo Electron U.S. Holdings →

Tokyo Electron U.S. Holdings reported a data breach to the Oregon Attorney General. The breach was reported on 2025-04-03. The breach was discovered on 2/19/2025. 793 individuals were affected. Notice was sent on 3/21/2025.

Oregon clock✓ OR AG ≤45d6 weeks discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

discovery → filing · 6 weeks / 43 days

Feb 19, 2025

Discovered

Apr 3, 2025

Filed

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
Oregon State AG+14d · this page

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.