DisclosureLens
UnknownFinanceLow

Cornerstone Bank

bd_e78d958f632831b0 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Jun 3, 2019

To disclose

—

Affected

1state residents only

Linked

2 filings

Confidence

95%
Full breach record for Cornerstone Bank →2 incidents on file

Cornerstone Bank reported a data breach to the Montana Attorney General. The breach was reported on 2019-06-03. The breach occurred on 3/7/2019. 1 Montana residents were affected.

Incident timeline

Mar 7, 2019

Begins

Jun 3, 2019

Filed

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings · 2 states

View merged incident ↗
Montana State AGJun 3 · first · this page
Massachusetts State AG+2d

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.