MultistateTax Inc
bd_0fe6a60118b97549 · schema v1 · pii pii-v1
Full breach record for MultistateTax Inc →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Blackshrantac on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Nov 13, 2025
Claim posted
—
Corroborated · see linked filings
This record's own dates cannot anchor compliance clocks; see the linked filings.
Claim → filing
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Compliance clock
Not assessable
Linked disclosures
Why this link?Regulatory filings (2) · sorted by filing gap
- Maryland State AGbd_52521b8d1df0777e2025-11-13Verified by operator
- Massachusetts State AGbd_66a37b7d9a964d0b2025-01-15 · +302dVerified by operator
Filing propagation · 2 filings · 2 states
View merged incident ↗Pattern: first filing Jan 15 (MA), last Nov 13 (MD) — a 302-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.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
blackshrantac
According to ransomware.live, BlackShrantac is a ransomware group that emerged in late 2025, targeting organizations in manufacturing, financial services, technology, and the public sector globally, employing double-extortion combined with living-off-the-land techniques to weaponize legitimate tools and disable defenses before encrypting files.