HackingProfessional ServicesProfessional ServicesData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountMediumActive

Tange , Mann & Garza

bd_ba11e7022cf0bd92 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 20, 2026

Filed

Aug 11, 2026

To disclose

12 weeks

Affected

4state residents only

Linked

6 records

Confidence

65%

Full breach record for Tange , Mann & Garza →

Tange, Mann & Garza, P.C. (TMG), an accounting services provider, confirmed on May 20, 2026, that personal information was accessed and taken from its network on March 20, 2026. The incident affected four New Hampshire residents. Compromised data may include names, Social Security numbers, dates of birth, driver’s license numbers, and financial account information. TMG notified federal law enforcement, secured its network, and is providing 12 months of credit monitoring through IDX. The investigation is ongoing.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d12 weeks discovery → filing

Incident timeline

undetected · 61 days

discovery → filing · 12 weeks / 83 days

Mar 20, 2026

Begins

May 20, 2026

Discovered

Aug 11, 2026

Filed

vs. sector median

8 wks faster

This filing is one of 6 records about the same incident.View merged incident

A leak claim by akira about this victim was first seen 132 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteakirabd_cbc5d5bb28444ab02026-03-20 · +144dVerified by operator

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_008adb60ca43b4512026-08-11Verified by operator
Indiana State AGbd_a2b74b05da2e394a2026-08-11Verified
Texas State AGbd_3904c53e3f7747fb2026-08-14 · +3dVerified
Texas State AGbd_890d55cefc7d5e732026-07-21 · +21dVerified

Name: Tange, Mann & Garza, P.C.
norm: tange mann garza

Name: Tange , Mann & Garza
norm: tange mann garza
Domain: tmgcpas.com
Industry: Professional Servicesllm

Discovered: May 20, 2026
Breach occurred: Mar 20, 2026
Undetected for: 61 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 11, 2026
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified federal law enforcementProviding written notice to relevant state and federal regulators

During the incident: Investigated and responded to the incident
Assessed the security of TMG systems
Identified potentially affected individuals
Notified federal law enforcement regarding the event
Providing access to credit monitoring services for twelve (12) months, through IDX
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing individuals with information on how to place a fraud alert and security freeze
Providing written notice of this incident to relevant state and federal regulators
Providing written notice to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Took steps to secure the network
Investigated the activity
Determined the scope of impacted information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(83 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

Texas State AGJul 21 · first

Massachusetts State AG+21d

Indiana State AG+21d

New Hampshire State AG+21d · this page

Texas State AG+24d

Pattern: first filing Jul 21 (TX), last Aug 14 (TX) — a 24-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://mm.nh.gov/files/uploads/doj/remote-docs/tange-mann-garza-20260811.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 11, 2026
Raw hash: fe3f95597a90e8b7ac475d844f1257c46dee83479c7c0fda05ad755f3b969cfd

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityTange, Mann & Garza, P.C.

Victim entityTange , Mann & Garza

Incidentdiscovered May 20, 2026

Stated responseInvestigated and responded to the incident

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov