DisclosureLens
Leak SiteState AGConfirmed6 records · 5 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedeveresthigh sensitivity
Merged incident · 6 records

Frost Bank — December 2025 breach

Clustered 6 records across 5 jurisdictions: 5 filings and 1 leak-site claim · filing window May 19, 2026 → May 20, 2026. View entity profile → Other incidents for this victim →

Determination

Confirmed

Members

6 records

States

5

Affected · reported

200,271

First → last filing

May 19, 2026 → May 20, 2026

Merge confidence

100%

incident inc_ec2860521dbe4be5 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 5 regulatory filings and 1 unverified claim. The filings describe unauthorized access. Intrusion Dec 1, 2025–Apr 16, 2026, discovered Apr 16, 2026 — the first regulatory filing landed 33 days later. 200,271 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Financial account, and 1 more. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay
33days

Discovered → first regulatory filing

Discovery variance
6days

Range of discovered_at dates across filings

Leak precedence
29days before filing

Days between the first sighting of the earliest-seen leak-site claim and the first regulatory filing. Measured from when the aggregator first saw the post, not the crew's own (often earlier) date. Positive = the claim came first (public exposure before disclosure). Negative = the claim trailed the filing, so there was no pre-disclosure leak. Counts regulatory filings only — press coverage is not a regulatory disclosure.

Filing span
1days

Time between earliest and latest filing

Not recorded for this incident

Materiality delta · SEC filing delay — no SEC 8-K in this cluster.

Regulatory clocksTexas✓ TX AG ≤30dFull clock table in Litigation Timeline

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Frost Bank data breach (2026) — filings in 5 jurisdictions, April 2026 · DisclosureLens