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Investigation Launched into 3St Peter O'Brien Law Office PC Data Breach

By Data Breach Law Group | Posted on April 23, 2026 · Indiana

3St Peter O'Brien Law Office PC & Relevant Clients in Indiana recently reported a data breach impacting personal information, with the incident occurring in September 2025. Our firm is now investigating the circumstances surrounding this breach and its potential effects on those whose data may have been exposed.

DataBreachLawGroup.com has initiated an investigation into the data breach reported by 3St Peter O'Brien Law Office PC & Relevant Clients. The Indiana-based entity disclosed on April 23, 2026, that an incident in which personal information was potentially exposed occurred on or about September 19, 2025.

The specific nature of the breach and the full scope of the affected individuals are still being assessed. However, reports indicate that the incident could have compromised personal information entrusted to 3St Peter O'Brien Law Office PC & Relevant Clients and its relevant clients.

When personal information is involved in such an incident, individuals may face an increased risk of identity theft, fraud, and other malicious activities. It is important for those affected to remain vigilant and take proactive steps to safeguard their data.

We advise individuals who receive notification of this breach to carefully review the information provided by 3St Peter O'Brien Law Office PC & Relevant Clients. Be sure to monitor your financial accounts and credit reports for any suspicious activity. Additionally, exercise caution with unsolicited communications, as scammers may try to capitalize on data breaches.

Our firm is committed to helping individuals understand their rights and explore potential legal recourse following data security incidents. If you have received a data breach notification letter from 3St Peter O'Brien Law Office PC & Relevant Clients, you may be entitled to legal remedies.

We encourage anyone impacted by this incident to seek guidance regarding their options. Contact DataBreachLawGroup.com for a free, no-obligation case review to discuss your situation and potential next steps.

Source: Indiana Attorney General breach notification record

If you were affected

  • 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.

Did you receive a letter from 3St Peter O'Brien Law Office PC & Relevant Clients?

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Related investigations

This page is attorney advertising and is for general informational purposes only. It is not legal advice, and contacting Data Breach Law Group does not create an attorney-client relationship. Case details are drawn from publicly reported breach notifications and may be updated as more information becomes available. Prior results do not guarantee a similar outcome.