DisclosureLens
HackingFinancial ServicesFinanceCustomer Data InvolvedPIIIdentity (basic)MediumContained

Neil I. Sidi, C.P.A.

bd_57c1071712ad3eda · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 20, 2026

Filed

Mar 17, 2026

To disclose

25 days

Affected · nationwide

1,9505 in this filing

Linked

2 filings

Confidence

65%
Full breach record for Neil I. Sidi, C.P.A. →

Neil I. Sidi, C.P.A. reported an external system breach (hacking) occurring on January 29, 2026, discovered on February 20, 2026. The incident affected 1,950 individuals total, including 5 Maine residents. The firm notified affected individuals via written notice on March 17, 2026, and offered Transunion credit monitoring services.

Maine clockDiscovered Feb 20, 2026 → Filed with AG Mar 17, 202625d ✓ ME AG ≤30d25 days discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 22 days
discovery → filing · 25 days

Jan 29, 2026

Begins

Feb 20, 2026

Discovered

Mar 17, 2026

Filed

vs. sector median

5 wks faster

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 ↗
Massachusetts State AGMar 16 · first
Maine State AG+1d · this page

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.