DisclosureLens
Social EngineeringTechnologyInformationPhishingTargetedEmployee Data InvolvedIdentity (basic)Government IDEmploymentFinancial accountMediumContained

Seagate US LLC

bd_395dee149884c302 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 1, 2016

Filed

Mar 9, 2016

To disclose

8 days

Affected

Not disclosed

Linked

3 filings

Confidence

64%
Full breach record for Seagate US LLC →

Seagate US, LLC disclosed a targeted phishing email incident on March 1, 2016, where employees in HR and Payroll were tricked into sending 2015 W-2 forms. The breach exposed names, addresses, Social Security numbers, and earnings of Seagate and affiliate employees. The company notified the IRS and federal law enforcement, offered two years of identity protection via Experian, and enhanced phishing training.

California clockDiscovered Mar 1, 2016 → Notified Mar 9, 20168d ✓ CA 60-day OK8 days discovery → filing

Incident timeline

discovery → filing · 8 days

Mar 1, 2016

Begins

Mar 1, 2016

Discovered

Mar 9, 2016

Filed

vs. sector median

17 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 ↗
Montana State AGMar 9 · first
California State AGMar 9 · first · this page
Massachusetts State AG+5d

Pattern: first filing Mar 9 (MT), last Mar 14 (MA) — a 5-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.