DisclosureLens
UnknownFinancial ServicesFinanceGovernment IDMedium

Topstep LLC

bd_342fa38f154153c7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Dec 30, 2025

To disclose

—

Affected

17state residents only

Linked

5 filings

Confidence

95%
Full breach record for Topstep LLC →2 incidents on file

Topstep LLC reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-30. 17 Massachusetts residents were affected.

Massachusetts clock✓ MA credit monitoring due
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Dec 30, 2025

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Filing propagation · 5 filings · 3 states

View merged incident ↗
Texas State AGDec 22 · first
Nebraska State AGDec 22 · first
Massachusetts State AGDec 22 · first
Nebraska State AG+8d
Massachusetts State AG+8d · this page

Pattern: first filing Dec 22 (TX), last Dec 30 (MA) — a 8-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.