DisclosureLens
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Sierra Club

bd_cf1225f15684e8b8 · schema v1 · pii pii-v2

Severity

Low

Discovered

Filed

Oct 4, 2023

To disclose

Affected · nationwide

8138 in this filing

Linked

6 filings

Confidence

95%
Full breach record for Sierra Club

Sierra Club reported a data breach to the Indiana Attorney General. The breach occurred on 2023-02-03 and was reported on 2023-10-04. 8 Indiana residents were affected. 813 individuals affected in total.

Incident timeline

Feb 3, 2023

Begins

Oct 4, 2023

Filed

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Show 1 more filingup to 1d gap

Filing propagation · 6 filings · 6 states

View merged incident ↗

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.