DisclosureLens
GLOBALMalwareFinancial ServicesFinanceRansomwareInc RansomRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

THIRD COAST BANCSHARES, INC.

bd_bf19136bbf6a99d9 · schema v1 · pii pii-v1

Severity

High

Discovered

Filed

Aug 18, 2026

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for THIRD COAST BANCSHARES, INC.

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group INC Ransom on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.

Group activity: Financial ServicesDiscovered: 2026-08-18

Source: Ransomware.live

Post text · scraped from the leak site

While Third Coast Bancshares (NASDAQ:TCBX) shares continue to rise rapidly and reach new highs, its leadership is concealing one of the largest data breaches in the history of the U.S. financial sector. This situation raises serious questions about the company’s conduct. In the near future, we intend to publish a comprehensive analytical report examining the TCBX activities. The public will then have an opportunity to assess the practices carried out by the company, including violations of applicable laws and regulations, as well as the conduct of certain shareholders and business partners. Our report will also examine allegations involving individuals connected to financial-sector regulators and law enforcement. Corruption, manipulation of data, regulatory non-compliance, and the submission of potentially misleading reports represent only a small part of the concerns we intend to address. We believe the time has come to initiate short positions. Our forthcoming publications are expected to raise significant questions about the company and could have broader implications for confidence in the U.S. financial sector. As for clients and stakeholders of the financial institution, We strongly recommend that clients safeguard their funds and consider withdrawing them in the near term. Stay tuned for further updates and the release of our detailed findings.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Aug 18, 2026

Claim posted

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

Compliance clock

Not assessable

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.

Source ceiling

  • actor name
  • victim claim
  • ransom/leak status
  • discovery date
  • materiality
  • notification
  • affected count
  • confirmed data types
  • compliance clock

The ✕ fields stay blank until a regulatory filing or victim disclosure lands.