DataBreachInformation.com
MonitoringIndiana AG filing · September 28, 2026

Blair C Diaz CPA PC Reports 2026 Data Breach in Indiana

Blair C Diaz CPA PC, an Indiana accounting firm, reported a data security incident on September 28, 2026, that exposed sensitive client information. The breach, which occurred on July 2, 2026, involved data including Social Security numbers and financial account details. Individuals should remain vigilant for signs of identity theft and financial fraud.

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, a professional accounting and financial services firm operating in Indiana, formally reported a data security incident to state regulators on September 28, 2026. The incident, which the firm states occurred on July 2, 2026, involved unauthorized access to systems containing sensitive client data.

The specific nature of the breach was not detailed in public filings, though accounting firms routinely handle extensive personal and financial records. Such incidents often stem from sophisticated external network intrusions or vulnerabilities in third-party applications that allow unauthorized access to internal databases.

The categories of data reported exposed by Blair C Diaz CPA PC include Full Name, Social Security Number, Date of Birth, Tax Return Information, Wage and Compensation Information, Financial Account Number, Routing Number, and Mailing Address. The presence of such detailed financial and personal identifiers elevates the risk for affected individuals.

Exposure of this information can lead to significant risks, including fraudulent tax filings, unauthorized credit card applications, bank account takeovers, and other forms of identity theft. Such incidents can have long-term consequences for those affected.

Individuals who receive a breach notification from Blair C Diaz CPA PC are advised to take protective measures. This includes regularly reviewing financial account statements and credit reports for any suspicious or unauthorized activity. Placing a fraud alert or security freeze on credit files can also help prevent new accounts from being opened in your name without your authorization.

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

Related data breach cases