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St Peter O'Brien Law Office PC & Relevant Clients data breach investigation

St Peter O'Brien Law Office PC & Relevant Clients reported a data security incident to Indiana authorities in April 2026. This breach, which occurred in September 2025, may have exposed highly sensitive client information, placing individuals at risk for identity theft and financial fraud.

Filed
April 23, 2026
Regulator
Indiana AG
People affected
Not stated
File status
Monitoring

What the filing confirms

  • St Peter O'Brien Law Office PC & Relevant Clients reported the incident to the Indiana Attorney General.
  • Information involved: Full Name, Social Security Number, Date of Birth, Financial Account Number, Tax Return Information, Confidential Legal and Case Files, Home Address, Phone Number.

Still unknown

  • How many people were affected. The filing does not give a number.
  • What caused the incident beyond the description in the filing.
  • How the attackers got in, and whether basic safeguards such as multi-factor sign-in were in place.
Read the filing at the source

Investigation notes

St Peter O'Brien Law Office PC & Relevant Clients, a legal practice, filed a data breach notification with the State of Indiana on April 23, 2026. The firm confirmed that a data security incident on September 19, 2025, led to the exposure of confidential client information. The exposed data categories include Full Name, Social Security Number, Date of Birth, Financial Account Number, Tax Return Information, Confidential Legal and Case Files, Home Address, and Phone Number.

For a law firm, the compromise of such comprehensive personal and financial details carries significant risks for affected individuals. The exposed information could be exploited for various forms of identity theft, fraudulent financial transactions, or targeted social engineering attempts. The nature of legal practice means that the firm collects deeply private information, and its compromise can have long-lasting consequences for those whose data was entrusted to their care.

Under Indiana state law, entities that collect and store sensitive personal information are legally obligated to implement robust security measures to protect that data. A confirmed data breach of this scope raises important questions about whether St Peter O'Brien Law Office PC & Relevant Clients maintained adequate administrative, physical, and technical safeguards. An investigation into a company's conduct typically examines the security protocols in place, the duration of unauthorized access, and the timeliness of the breach notification.

If you have received a data breach notification from St Peter O'Brien Law Office PC & Relevant Clients, it serves as an official acknowledgment that your personal data was compromised. This notice is a key piece of evidence in understanding the potential impact on you. We are actively investigating this incident and are available to discuss your legal options regarding this data exposure. Understanding your rights and potential next steps can help protect you from future harm.

What our attorneys examine

A cyberattack does not excuse a company from protecting the information it holds. We look at whether St Peter O'Brien Law Office PC & Relevant Clients used reasonable security, how long it kept the data, and how quickly it told the people affected. Those questions decide whether a class action or individual claim is possible. Read more on how ransomware lawsuits work, or browse other incident files in Indiana.

St Peter O'Brien Law Office PC & Relevant Clients data breach questions

How many people were affected by the St Peter O'Brien Law Office PC & Relevant Clients data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Social Security Number, Date of Birth, Financial Account Number, Tax Return Information, Confidential Legal and Case Files, Home Address, Phone Number. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Is the St Peter O'Brien Law Office PC & Relevant Clients data breach letter legit or a scam?
A notice from St Peter O'Brien Law Office PC & Relevant Clients in the mail matches the breach St Peter O'Brien Law Office PC & Relevant Clients reported to the Indiana Attorney General on April 23, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact St Peter O'Brien Law Office PC & Relevant Clients through a phone number or website you find yourself.
Did St Peter O'Brien Law Office PC & Relevant Clients offer free credit monitoring?
Look for an enrollment code in your St Peter O'Brien Law Office PC & Relevant Clients notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Using the free service won't stop you from joining a lawsuit or settlement later.
Is there a St Peter O'Brien Law Office PC & Relevant Clients data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against St Peter O'Brien Law Office PC & Relevant Clients. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
What should I do after getting the St Peter O'Brien Law Office PC & Relevant Clients data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Where can I see the official St Peter O'Brien Law Office PC & Relevant Clients breach notice?
St Peter O'Brien Law Office PC & Relevant Clients's report is published by the Indiana Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#3st-peter-obrien-law-office-pc-relevant-clients-2026 Compare it with the letter you received to confirm the dates and details match.
Do I need a St Peter O'Brien Law Office PC & Relevant Clients data breach lawyer or attorney?
An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
Can I sue St Peter O'Brien Law Office PC & Relevant Clients over the data breach?
It depends on what was exposed, the law in Indiana and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
How much could a St Peter O'Brien Law Office PC & Relevant Clients data breach settlement or claim be worth?
There is no set amount, and no St Peter O'Brien Law Office PC & Relevant Clients settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. The filing lists Full Name, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.

Other open files in Indiana

Attorney advertising. An incident file reflects a public regulator filing and our review of it; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.