Arvest Bank
ent_019e20768cc4578d6745fa3989bff89e
Disclosures
7
State AG · 4 jurisdictions
Incidents
3
filings grouped by incident
Max affected reported
26,388
nationwide · State AG ME
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Arvest Bank
- Normalized
- arvest bank— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- COINQMNIM6RBU631DD85
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (7)newest first
- 🏎️Indiana State AGas victim2025-05-30
Arvest Bank reported a data breach to the Indiana Attorney General. The breach occurred on 2025-05-08 and was reported on 2025-05-30. 1 Indiana residents were affected. 2,835 individuals affected in total.
- 🦞Maine State AGas victim2025-05-12
Arvest Bank reported a data breach affecting 4 Maine residents. The breach was discovered on April 24, 2025, and occurred on the same day. The bank is offering 12 months of identity theft protection services to those affected.
- 🏎️Indiana State AGas victim2025-05-09
Arvest Bank reported a data breach to the Indiana Attorney General. The breach occurred on 2025-04-24 and was reported on 2025-05-09. 9 Indiana residents were affected. 7,537 individuals affected in total.
- 🦞Maine State AGas victim2024-02-01
Arvest Bank reported a cybersecurity incident involving its third-party vendor, Fiserv. Between May 27 and May 31, 2023, a zero-day SQL injection vulnerability in Fiserv's MOVEit Transfer tool was exploited, resulting in the exfiltration of customer data. The breach was discovered on October 13, 2023. A total of 26,388 individuals were affected, including one Maine resident. Arvest Bank notified affected individuals on January 30, 2024, and provided two years of identity theft protection services.
- 🦞Maine State AGas victim2022-11-01
Arvest Bank reported a data breach caused by an internal issue at a third-party vendor. The breach occurred on May 26, 2022, and was discovered on July 11, 2022. The incident affected 2 Maine residents, who were notified on October 31, 2022. Arvest Bank offered one year of identity theft protection services to the individuals affected.
- ⛰️New Hampshire State AGas reporting2022-11-01
Arvest Bank notified the NH AG of a third-party vendor breach involving Overby-Seawell Company (OSC). Unauthorized access to OSC servers began May 26, 2022. OSC discovered suspicious activity July 5, 2022. Customer data (names, loan info, addresses, insurance policy info) was exposed. 2 NH residents affected. Arvest offered 1-year IDProtect monitoring and credit freeze guidance. Investigation ongoing.
- 🦬Montana State AGas victim2022-10-31
Arvest Bank reported a data breach to the Montana Attorney General. The breach was reported on 2022-10-31. The breach occurred from 5/26/2022 to 7/5/2022. 1 Montana residents were affected.