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Case File: Fullsteam Software Holdings LLC dba Event Rental Systems Data Breach

This file collects the dated facts on record for the Fullsteam Software Holdings LLC dba Event Rental Systems incident. The state report is dated December 16, 2025. The incident itself is dated October 8, 2025.

Timeline

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

  1. October 8, 2025Incident dateWhen the filing says the breach took place.
  2. December 16, 2025Report filed in TexasDate the notice was lodged with the Texas Attorney General.

Case facts

Filing state
Texas
Date reported
December 16, 2025
Incident date
October 8, 2025
Receiving office
Texas Attorney General

Case notes

Fullsteam Software Holdings LLC, operating as Event Rental Systems, filed a report with regulators in Texas on December 16, 2025, concerning a data security incident. This filing publicly documents a breach impacting their systems.

The incident, for which a specific breach type was not detailed in the public record, took place on October 8, 2025. Fullsteam Software Holdings LLC initiated an investigation into the matter.

According to the information available in the public filing, the security incident resulted in the exposure of personal information. The report did not specify the exact categories of data that were involved in this breach.

While the filing confirms that an incident occurred involving personal information, the precise number of individuals potentially affected by this event was not disclosed in the public document.

Given that personal information was exposed, individuals who believe they may be impacted should consider general protective steps. These commonly include monitoring financial statements and credit reports for any unusual activity. It is also advisable to exercise caution with unsolicited communications that request personal details.

Fullsteam Software Holdings LLC indicated in their filing that the data security incident remains under investigation as of the December 16, 2025, report date.

Questions about this case file

Where does the Fullsteam Software Holdings LLC dba Event Rental Systems case file come from?
Every entry is taken from the breach report Fullsteam Software Holdings LLC dba Event Rental Systems 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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Filing source: Texas Attorney General