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Investigation OpenTX AG filing · December 16, 2025

Fullsteam Software Reports Data Security Incident to Regulators

Fullsteam Software Holdings LLC, operating as Event Rental Systems, reported a data security incident to regulators in December 2025. The breach, which occurred in October 2025, involved the exposure of personal information. Individuals who may have been affected are advised to take general precautionary measures.

State
TX
Breach date
October 8, 2025
Reported
December 16, 2025

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.

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.

Source: TX Attorney General filing

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