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MonitoringIndiana AG filing · September 28, 2026

Blair C Diaz CPA PC Data Breach Exposes Client Financial Data

Blair C Diaz CPA PC, an Indiana accounting firm, reported a data breach on September 28, 2026, where sensitive client financial and personal information was exposed. This incident includes critical data like Social Security Numbers and financial account details, raising significant identity theft concerns for affected individuals. If you received a notification letter, you may be eligible to join a class action lawsuit.

This breach is real, not a scam. Blair C Diaz CPA PC officially reported it to the Indiana Attorney General on September 28, 2026.

Reviewed by David S. Harris, Esq., data breach and class action attorney (Florida Bar No. 0112739). Free consultation: 786-306-7278

Received a Blair C Diaz CPA PC notification letter? Find out in minutes if you qualify for compensation.

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State
Indiana
Breach date
July 2, 2026
Reported
September 28, 2026

What may have been exposed

  • Full Name
  • Social Security Number
  • Date of Birth
  • Tax Return Information
  • Wage and Compensation Information
  • Financial Account Number
  • Routing Number
  • Mailing Address

Blair C Diaz CPA PC, an accounting and financial services firm based in Indiana, disclosed a data security incident reported on September 28, 2026. This breach involved unauthorized access to its systems, potentially compromising the highly sensitive personal and financial data entrusted to the firm by its clients.

The exposed information includes a range of critical data points such as Full Name, Social Security Number, Date of Birth, Tax Return Information, Wage and Compensation Information, Financial Account Number, Routing Number, and Mailing Address. The nature of these compromised records makes them especially valuable to cybercriminals.

Such an exposure carries severe, long-term risks for those affected. With Social Security Numbers and financial details compromised, victims face an elevated risk of fraudulent tax filings, unauthorized credit applications, bank account takeovers, and even synthetic identity creation. Resolving these issues can often take years and considerable effort.

As a professional entity handling confidential financial information, Blair C Diaz CPA PC was legally obligated to protect client data through robust security measures. A breach of this scale suggests potential failures in these safeguards, which could violate state data protection statutes and other regulations.

Receiving an official data breach notification letter from Blair C Diaz CPA PC is confirmation that your private information was compromised. This notification often provides the necessary legal standing to explore your options, including participating in a class action lawsuit. Such legal action aims to hold the company accountable for its security lapses and seek compensation for affected individuals.

If you received a data breach notification from Blair C Diaz CPA PC, you do not need to wait for financial loss to seek legal advice. We are currently investigating this incident and offer a free, no-obligation case review to help you understand your rights and potential next steps.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Guard against tax fraud

    File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

Source: Indiana Attorney General filing

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