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Investigation OpenTX AG filing · March 30, 2026

ONE Gas, Inc. Files Data Breach Notification in Texas

ONE Gas, Inc. has filed a data breach notification with Texas regulators regarding an incident that took place on August 1, 2025. This filing indicates that certain personal information may have been exposed, prompting individuals to be aware.

State
TX
Breach date
August 1, 2025
Reported
March 30, 2026

ONE Gas, Inc. has officially reported a data security incident to authorities in Texas. The company's filing documents an event that occurred on August 1, 2025, where individuals' personal information may have been involved. The notification was submitted on March 30, 2026.

The specific nature of this breach and the exact categories of personal information that were potentially exposed were not detailed in the public record. ONE Gas, Inc. has stated that an investigation into the incident is ongoing to understand the full scope of what transpired.

Individuals who receive a direct notification from ONE Gas, Inc. should review it carefully for any further details provided. It is important to recognize that any exposure of your data carries potential risks, even if the precise data types are not specified.

As a general precaution following any data security incident, it is wise to monitor your accounts for any suspicious activity. This includes reviewing statements from banks and other financial services for unauthorized transactions. Additionally, remain alert for unexpected communications, such as emails or phone calls, that might attempt to gather more of your personal details.

This information is based solely on the official data breach filing made public with state regulatory bodies. Such filings serve as a public record of reported security incidents.

What to do if you were affected

These general steps can help limit the risk of identity theft and fraud after any data breach.

  • 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.

What to know about the ONE Gas, Inc. data breach

Where can I see the official ONE Gas, Inc. breach notice?
ONE Gas, Inc.'s report is published by the TX Attorney General: https://oag.my.site.com/datasecuritybreachreport/apex/DataSecurityReportsPage#BR-0004943 Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the ONE Gas, Inc. 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.
Is the ONE Gas, Inc. data breach letter legit or a scam?
A notice from ONE Gas, Inc. in the mail matches the breach ONE Gas, Inc. reported to the TX Attorney General on March 30, 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 ONE Gas, Inc. through a phone number or website you find yourself.
Did ONE Gas, Inc. offer free credit monitoring?
Look for an enrollment code in your ONE Gas, Inc. notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Enrolling does not give up your right to bring a claim.
Can I sue ONE Gas, Inc. over the data breach?
It depends on what was exposed, the law in TX 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.
Is there a ONE Gas, Inc. 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 ONE Gas, Inc.. 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.
How much could a ONE Gas, Inc. data breach settlement or claim be worth?
There is no set amount, and no ONE Gas, Inc. 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. Keep receipts and records; they're what damages claims are built on.
Do I need a ONE Gas, Inc. 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.

Source: TX Attorney General filing

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ONE Gas, Inc. Data Breach 2026: Filing Record