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Case File: LoneStar Truck Group/TAG Truck Center Data Breach

This file collects the dated facts on record for the LoneStar Truck Group/TAG Truck Center incident. The state report is dated May 28, 2026. The incident itself is dated April 8, 2026.

Timeline

50 days separate the incident date from the date it was reported.

  1. April 8, 2026Incident dateWhen the filing says the breach took place.
  2. May 28, 2026Report filed in TexasDate the notice was lodged with the Texas Attorney General.

Case facts

Filing state
Texas
Date reported
May 28, 2026
Incident date
April 8, 2026
Receiving office
Texas Attorney General

Case notes

LoneStar Truck Group, also operating as TAG Truck Center, filed a report with the Texas Attorney General regarding a data security incident. The company confirmed that unauthorized parties may have accessed its internal systems, leading to the potential exposure of personal information. This filing serves as official notice of the breach.

As a commercial vehicle dealership and heavy-duty truck service provider, LoneStar Truck Group handles various types of information. Its operations typically involve collecting and storing data crucial for logistics, fleet maintenance, and large-scale vehicle transactions. This can include employee and customer data necessary for business functions.

The company identified April 8, 2026, as the date the security incident began. LoneStar Truck Group reported the event to the Texas Attorney General on May 28, 2026, and stated that the investigation into the breach is ongoing. The specific categories of personal information involved have not been publicly detailed in the filing.

Individuals who receive an official data breach notification letter from LoneStar Truck Group/TAG Truck Center should review it immediately. This letter will provide specifics regarding what information of yours was impacted. It is also likely to outline services, such as credit monitoring or identity protection, that the company may be offering to help protect those affected.

It is generally advisable to remain vigilant following any data security incident. Consider reviewing financial statements and account activity for any suspicious transactions. Additionally, be wary of unsolicited communications that claim to be from LoneStar Truck Group and ask for personal details.

Questions about this case file

Where does the LoneStar Truck Group/TAG Truck Center case file come from?
Every entry is taken from the breach report LoneStar Truck Group/TAG Truck Center lodged with the Texas Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?
Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?
It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?
Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

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