Data Breach Investigation

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Data Breach

Tange, Mann & Garza, P.C. Data Breach Investigation

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Date of data breach:

July 21, 2026

by: Almeida Law Group

Almeida Law Group is investigating a data breach at Tange, Mann & Garza, P.C. The breach was discovered on May 20th, 2026. If you were affected, contact Almeida Law Group.

About Tange, Mann & Garza, P.C.

Tange, Mann & Garza, P.C. is a full-service CPA and accounting firm located at 1225 North Loop West, Suite 1105, Houston, Texas 77008. The firm provides tax services, accounting, and financial advisory services for individuals, business owners, executives, and independent professionals. The Texas Attorney General filing categorizes it as a Financial Services organization. Because the breach involved Social Security numbers, driver’s license numbers, financial account information, and dates of birth, affected individuals face meaningful identity theft and fraud risks.

What Happened?

Tange, Mann & Garza, P.C. was listed in a Texas Attorney General data security breach report (record BR-0005186), published on July 21st, 2026. The firm discovered the breach on May 20th, 2026, and a total of 737 individuals were affected. The compromised information included names, Social Security numbers, driver’s license numbers, financial account or card numbers, and dates of birth. Consumers were notified by U.S. Mail. The Texas Attorney General filing does not identify an attack vector or name any threat actor.

Two ransomware leak-site monitoring sources have published conflicting attacker claims potentially related to this incident. Ransomware.live lists an entry attributed to the NightSpire ransomware group, with a discovery date of April 1st, 2026, and an estimated attack date of March 29th, 2026. Separately, HookPhish reports that the Akira ransomware group claimed Tange, Mann & Garza as a victim, also with a discovery date of April 1st, 2026. These are unverified attacker allegations from ransomware leak sites and dark web monitoring feeds — neither Tange, Mann & Garza nor any regulator has confirmed either attribution. The conflicting group attributions further underscore the need for independent verification. The firm’s official breach discovery date of May 20th, 2026 is roughly two months after those leak-site postings, which may reflect the time required to complete a forensic investigation.

Key Facts at a Glance

  • Company or Organization: Tange, Mann & Garza, P.C.
  • Industry: Accounting Services / CPA Firm (categorized as Financial Services in the TX OAG breach filing)
  • Location: Houston, Texas 77008
  • Incident type: Unauthorized access to personal information
  • Date breach discovered: May 20th, 2026
  • Date of consumer notification: July 21st, 2026
  • Total persons affected: 737
  • Source: Texas Attorney General Data Security Breach Report, BR-0005186 (https://oag.my.site.com/datasecuritybreachreport/apex/DataSecurityReportsPage#BR-0005186); Ransomware.live (https://ransomware.live/activity/Financial%20Services); HookPhish (https://www.hookphish.com/blog/ransomware-group-akira-hits-tange-mann-and-garza/)

What Should You Do?

If you received a notice from Tange, Mann & Garza, P.C., review it carefully for any identity theft protection enrollment offer and note the enrollment deadline. Because Social Security numbers, driver’s license numbers, financial account information, and dates of birth were involved, consider placing a fraud alert or credit freeze with each of the three major credit bureaus — Equifax, Experian, and TransUnion. You are entitled to free weekly credit reports at AnnualCreditReport.com; review them for accounts or inquiries you do not recognize. Monitor your bank and credit card statements closely for unauthorized transactions. If you become a victim of identity theft, report it at IdentityTheft.gov for a personalized recovery plan.

Your Legal Rights

If your personal information was involved in this breach, you may have legal rights depending on the facts of the incident and the law in your state. Almeida Law Group represents consumers in data breach and privacy litigation and can help you evaluate whether you may have a claim. Contact us at (708) 529-5418 or through our contact page for a free case evaluation.

Were You a Victim of a Data Breach?

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