HackingRetail & ConsumerRetailStolen CredentialsCustomer Data InvolvedIdentity (basic)MediumContained

unibail rodamco westfield

bd_d24681a0d01cc87e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 18, 2026

Filed

Mar 18, 2026

To disclose

28 days

Affected

5,723state residents only

Confidence

71%

Full breach record for unibail rodamco westfield →

Unibail-Rodamco-Westfield reported unauthorized access to a database containing loyalty program and newsletter subscriber data for Westfield Southcenter. The incident occurred Feb 12-18, 2026, and was discovered on Feb 18. 5,723 Washington residents were notified on March 18, 2026. Data potentially included names and dates of birth.

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Washington clock✓ WA AG ≤30d28 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 · 6 days

discovery → filing · 28 days

Feb 12, 2026

Begins

Feb 18, 2026

Discovered

Mar 18, 2026

Filed

vs. sector median

4 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed5,723 affectedView incident

Name: Cipriani & Werner
norm: cipriani werner
Domain: c-wlaw.com

Name: unibail rodamco westfield
Domain: urw.com
Industry: Retail & Consumerllm

Discovered: Feb 18, 2026
Breach occurred: Feb 12, 2026 – Feb 18, 2026
Undetected for: 6 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 18, 2026
Affected individuals: 5,723state-resident count only
Data types: Identity (basic)
Data elements: NameDate of birth
WA-stated cause: Unauthorized Access
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Submitted notification to Washington State Office of the Attorney General
Initial access: valid_credentials

During the incident: Took immediate steps to secure the environment
Launched a thorough investigation
Completed a comprehensive review of the impacted database
Sent written notice of this incident via email to all potentially impacted Washington residents
Provided a notice on its Westfield Southcenter website
Provided notice to statewide media in Washington
Changes made: Enhanced digital security measures to safeguard customer
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: WA AG ≤30d
Discovery-date grounding: 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.

Status: No extraction artifact recorded for this disclosure.

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.

Source URL: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA37260.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 18, 2026
Raw hash: 01704d0f3e3a8ad6e5468c0b0a8dc9605e80e3f4b79ec51e57a252f01b35ffff

Reporting entityCipriani & Werner

Victim entityunibail rodamco westfield

Incidentdiscovered Feb 18, 2026

Stated responseTook immediate steps to secure the environment

ComplianceWA AG ≤30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com