DisclosureLens
UnknownHigh

WestJet, an Alberta Partnership

bd_0dd2d099a5ac7f74 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 15, 2025

Filed

Oct 3, 2025

To disclose

18 days

Affected

1,200,000

Linked

14 filings

Confidence

95%
Full breach record for WestJet, an Alberta Partnership →

WestJet reported a data breach to the Oregon Attorney General. The breach was reported on 2025-10-03. The breach occurred during 6/13/2025 - 6/14/2025. The breach was discovered on 9/15/2025. 1,200,000 individuals were affected. Notice was sent on 9/29/2025.

Date basis clock✓ Clock withheld · confirmation date18 days 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

undetected · 94 days
discovery → filing · 18 days

Jun 13, 2025

Begins

Sep 15, 2025

Discovered

Oct 3, 2025

Filed

This filing is one of 14 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Show 6 more filings ↓up to 4d gap

Showing first 10 of 13 linked disclosures.

Filing propagation · 11 filings · 11 states

View merged incident ↗
Indiana State AGSep 29 · first
South Carolina State AGSep 29 · first
Montana State AGSep 29 · first
New Hampshire State AGSep 29 · first
Vermont State AGSep 29 · first
California State AG+1d
Maine State AG+1d
Washington State AG+4d
Oregon State AG+4d · this page
Massachusetts State AG+5d
Texas State AG+8d

Pattern: first filing Sep 29 (IN), last Oct 7 (TX) — a 8-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 13 — the full spread may be wider.

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.