DisclosureLens
UnknownRetail & ConsumerRetailIdentity (basic)Government IDPHIHealth (basic)Critical

WestJet, an Alberta Partnership

bd_4405e7fd2d88d7fb · schema v1 · pii pii-v1

Severity

Critical

Discovered

Sep 15, 2025

Filed

Oct 7, 2025

To disclose

22 days

Affected · nationwide

1,200,00010,487 in this filing

Linked

14 filings

Confidence

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

WestJet based in Calgary, Alberta, Canada, Illinois, a business – retail or merchant entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-09-15 and reported on 2025-10-07. 10,487 Texas residents were affected. 1,200,000 individuals affected in total. Types of information involved: Name of individual;Address;Government-issued ID number (e.g. passport, state ID card);Medical Information;Other;Date of Birth. Consumers were notified via Posted at company website or special website;U.S. Mail;Email;Broadcast on Texas-wide Media.

Texas clock✓ TX AG ≤30d22 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 · ≤ 22 days

Jun 13, 2025

Begins

Sep 15, 2025

Discovered

Oct 7, 2025

Filed

vs. sector median

6 wks faster

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 8d 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
Oregon State AG+4d
Washington State AG+4d
Massachusetts State AG+5d
Texas State AG+8d · this page

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.