Banner Capital Bank Data Breach Exposes Customer Information in August 2025 Incident
On March 10, 2026, law firm Wolf Haldenstein Adler Freeman & Herz LLP announced an investigation into a data breach at Banner Capital Bank, a financial institution based in Harrisburg, Nebraska. The breach, which occurred in August 2025, may have resulted in the theft of sensitive customer data, including names and account numbers.
Banner Capital Bank has begun notifying affected individuals, warning that compromised information could be circulating on the dark web. Those who received breach notifications and observed suspicious activity are advised that their data may have been exposed.
Wolf Haldenstein, a national consumer rights firm with offices in New York, Chicago, Nashville, and San Diego, is reviewing potential legal claims on behalf of impacted customers. The firm has a history of handling complex consumer litigation in state and federal courts.
The investigation remains ongoing, with no further details on the breach’s scope or the number of affected individuals disclosed at this time.
Banner Capital Bank cybersecurity rating report: https://www.rankiteo.com/company/bannercapitalbank
"id": "BAN1773153276",
"linkid": "bannercapitalbank",
"type": "Breach",
"date": "8/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'industry': 'Banking',
'location': 'Harrisburg, Nebraska',
'name': 'Banner Capital Bank',
'type': 'Financial Institution'}],
'customer_advisories': 'Affected individuals warned about potential '
'suspicious activity',
'data_breach': {'data_exfiltration': 'Potential circulation on the dark web',
'personally_identifiable_information': 'Names and account '
'numbers',
'sensitivity_of_data': 'High',
'type_of_data_compromised': 'Customer information'},
'date_detected': '2025-08-01',
'date_publicly_disclosed': '2026-03-10',
'description': 'Banner Capital Bank experienced a data breach in August 2025 '
'that may have resulted in the theft of sensitive customer '
'data, including names and account numbers. The breach was '
'investigated by law firm Wolf Haldenstein Adler Freeman & '
'Herz LLP, which is reviewing potential legal claims on behalf '
'of impacted customers.',
'impact': {'data_compromised': 'Names and account numbers',
'identity_theft_risk': 'High',
'legal_liabilities': 'Potential legal claims under review'},
'initial_access_broker': {'data_sold_on_dark_web': 'Potential'},
'investigation_status': 'Ongoing',
'references': [{'date_accessed': '2026-03-10',
'source': 'Wolf Haldenstein Adler Freeman & Herz LLP'}],
'regulatory_compliance': {'legal_actions': 'Potential legal claims under '
'review'},
'response': {'communication_strategy': 'Breach notifications sent to affected '
'individuals',
'third_party_assistance': 'Wolf Haldenstein Adler Freeman & Herz '
'LLP'},
'title': 'Banner Capital Bank Data Breach Exposes Customer Information',
'type': 'Data Breach'}