Banking Data Breaches

The Cecilian Bank experienced a data breach in August 2026, which was reported by a ransomware tracking site.

BOK Financial experienced a reported data breach on August 22, 2026, according to a ransomware tracker.

U.S. Bank was listed in a reports-only 2026 data breach entry by RansomLook, which associated usbank.com with the LockBit 5 ransomware group on August 20, 2026. U.S. Bank has not publicly confirmed the incident, affected count, or data types in the sources reviewed.

Sunwest Bank experienced a data breach in August 2026, which was reported to the Vermont Attorney General.

Third Coast Bancshares data breach in 2026 was listed by a ransomware tracker, but the incident has not been publicly confirmed in the sources reviewed. No affected count, data types, or official notice were provided.

Stonebridge First Financial Group, a mortgage banking company, began notifying customers in August 2026 about a security incident that may have exposed personal and financial information. The extent of the breach and specific data types involved are not publicly confirmed by official sources.

Fleur de Lis Federal Credit Union experienced a data incident involving a business email account discovered in May 2026. The credit union is notifying affected members.

Gold Peak Wealth Management data breach in 2026 was listed on RansomLook as a leaked incident, but the available source did not confirm affected people, specific data types, or official disclosure.

A Daily Dark Web report published October 23, 2025, alleged an HSBC USA data breach involving sensitive customer and financial information. HSBC and regulators have not publicly confirmed the alleged 2025 data breach, and the affected-individual count remains unknown.

Pioneer Bank data breach reports appeared in 2026 on RansomLook, but no official confirmation or notice was provided in the source.

J&T Bank and Trust data breach in 2026 was listed by a ransomware tracker, but the incident has not been publicly confirmed. The available source did not disclose affected counts, data types, or notification dates.

One Community FCU appeared in a reports-only 2026 data breach listing posted by the DragonForce ransomware group and recorded by RansomLook on August 5, 2026. The affected count and specific data types have not been publicly confirmed.

albanybank.com data breach in 2026 was listed by a ransomware tracker, but no official confirmation or impact details were available in the sources reviewed.

State Bank of Nauvoo experienced a data breach in July 2026, reportedly due to the incransom ransomware group.

TQ Financial Services experienced a reported data breach in 2026, claimed by the qilin ransomware group, though official confirmation and details are pending.

Texas Capital Bank experienced a data breach in April 2026, impacting approximately 95,695 individuals, involving various types of personal and financial information.

A potential data breach affecting Intelliloan, Inc. was reported to the California Attorney General, but details regarding the incident are not publicly available as of 2026. A ransomware tracking site mentions a possible Lockbit5 attack in late 2025.

No data breach was reported for California International Bank, N.A. in 2026. The information provided does not indicate a data breach for this entity.