DisclosureLens
HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Bison State Bank

bd_d61fffe9af833628 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 6, 2026

Filed

Feb 9, 2026

To disclose

5 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%
Full breach record for Bison State Bank →

Bison State Bank notified the New Hampshire Attorney General of an unauthorized access to a single email account between April 17, 2025, and June 30, 2025. The incident affected one New Hampshire resident, whose full name, Social Security number, and credit card information were potentially accessed. The bank discovered the breach on January 6, 2026, contained the incident, engaged forensic experts, and mailed notifications to the affected individual on January 26, 2026, offering complimentary credit monitoring.

Incident timeline

undetected · 264 days
discovery → filing · 5 weeks / 34 days

Apr 17, 2025

Begins

Jan 6, 2026

Discovered

Feb 9, 2026

Filed

vs. sector median

4 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 3 states

View merged incident ↗
Nebraska State AGJan 26 · first
Massachusetts State AG+5d
New Hampshire State AG+14d · this page

Pattern: first filing Jan 26 (NE), last Feb 9 (NH) — a 14-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

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

Press / market report

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

State AG / regulator filingThis record

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

SEC 8-K / victim statement

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