Mercadien P.C. CPAs
bd_aea05dfcc088a1bf · schema v1 · pii pii-v1
Mercadien P.C. CPAs notified the NH AG of a supplemental data incident. An unauthorized actor accessed and acquired files between Sept 17 and Oct 9, 2025. Discovery occurred Nov 7, 2025. 8 NH residents were affected. Data included names and banking/transaction info. Systems were secured and investigation completed. Credit monitoring offered.
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Incident timeline
Sep 17, 2025
Begins
Nov 7, 2025
Discovered
Jul 20, 2026
Filed
vs. sector median
+18 wks slower
Linked disclosures
Why this link?Regulatory filings (8) · sorted by filing gap
- Texas State AGbd_7b787e3dbbd82d8e2026-02-24 · +146dVerified
- South Carolina State AGbd_bb8b76494cae40c62026-02-23 · +147dVerified
- Indiana State AGbd_5a136d8dad7a13462026-02-17 · +153dVerified
- Nebraska State AGbd_9581ab095364e27d2026-02-17 · +153dVerified
Show 4 more filings ↓Show fewer ↑up to 208d gap
- Delaware State AGbd_b06b2f75cc90e4452026-02-17 · +153dVerified
- New Hampshire State AGbd_6a472f77725ed7622026-01-05 · +196dVerified
- Maine State AGbd_be4f63906a17f7282025-12-31 · +201dCandidate
- Massachusetts State AGbd_e681ed6e473e0a2f2025-12-24 · +208dVerified
Filing propagation · 9 filings · 8 states
View merged incident ↗Pattern: first filing Dec 24 (MA), last Jul 20 (NH) — a 208-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.