HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountMediumContained

MultistateTax Inc

bd_52521b8d1df0777e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 12, 2024

Filed

Nov 13, 2025

To disclose

—

Affected

5state residents only

Linked

3 filings

Confidence

66%

Full breach record for MultistateTax Inc →

Multistate Tax, Inc. notified the Maryland Attorney General of a data incident involving fraudulent tax filings. Unauthorized actors accessed client data between Jan 31 and Sep 24, 2024, affecting 5 Maryland residents. Data included names, SSNs, and financial account numbers. Multistate Tax engaged third-party specialists, notified the IRS, and provided 12 months of credit monitoring to affected individuals.

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Incident timeline

undetected · 225 days

Jan 31, 2024

Begins

Sep 12, 2024

Discovered

Nov 13, 2025

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteblackshrantacbd_0fe6a60118b975492025-11-13Candidate

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_66a37b7d9a964d0b2025-01-15 · +302dVerified by operator

Name: Cipriani
norm: cipriani
Domain: cipriani.com

Name: MultistateTax Inc
norm: multistatetax
Domain: multistatetax.net
Industry: Professional Servicesllm

Discovered: Sep 12, 2024
Breach occurred: Jan 31, 2024 – Sep 24, 2024
Undetected for: 225 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 15, 2025
Affected individuals: 5state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1114 Email CollectionT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Maryland Office of the Attorney General
Initial access: valid_credentials

During the incident: Notifying the IRS
Engaging third-party specialists to assist with determining the nature and scope of the incident
Provided written notice of this incident to the potentially impacted Maryland residents
Offer of complimentary credit monitoring and identity protection services for twelve (12) months
Changes made: Offer of complimentary credit monitoring and identity protection services for twelve (12) months
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGJan 15 · first

Maryland State AG+302d · this page

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

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.

Source URL: https://oag.maryland.gov/resources-info/SBN%20Documents/2025/ITU-376196.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 13, 2025
Raw hash: 076560fff7f4876b0b9bc0dc29dee245d7b0879ae5ab00e65c96c8513919f309

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityCipriani

Victim entityMultistateTax Inc

Incidentdiscovered Sep 12, 2024

Stated responseNotifying the IRS

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov