Fullsteam Software Holdings LLC
ent_b8e213741992badadea603b1
Disclosures
3
State AG · 3 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
13,370
nationwide · State AG TX
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Fullsteam Software Holdings LLC
- Normalized
- fullsteam software— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (3)newest first
- Texas State AGas victim2025-12-16
Fullsteam Software Holdings LLC dba Event Rental Systems based in Albuquerque, New Mexico, a business – retail or merchant entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-10-08 and reported on 2025-12-16. 2,792 Texas residents were affected. 13,370 individuals affected in total. Types of information involved: Name of individual;Financial Information (e.g. account number, credit or debit card number). Consumers were notified via Email.
- Massachusetts State AGas victim2025-12-15
Fullsteam Software Holdings LLC d/b/a Event Rental Systems reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-15. 240 Massachusetts residents were affected.
- California State AGas victim2025-12-15
Event Rental Systems (ERS) disclosed that unauthorized code was inserted into customer website modules to scrape payment card data (card numbers, CVV, expiration dates) and contact information between October 2024 and October 2025. The company removed the code, engaged forensic investigators, notified law enforcement and card brands, and is offering one year of credit monitoring and identity restoration services via Experian to affected individuals.
Subsidiary disclosures (3)filed by group companies
◈ These filings were made by or about subsidiaries of Fullsteam Software Holdings LLC — not by Fullsteam Software Holdings LLC itself. Corporate relationships are mapped from GLEIF relationship records and SEC Exhibit 21 filings.
- Oregon State AGvia Event Rental Systems2025-12-22
Event Rental Systems reported a data breach to the Oregon Attorney General. The breach was reported on 2025-12-22. The breach occurred during 10/1/2024, 10/31/2025. The breach was discovered on 10/1/2024. 311 individuals were affected. Notice was sent on 12/15/2025.
- New Hampshire State AGvia Event Rental Systems2025-12-15
Event Rental Systems (operated by Fullsteam Software Holdings LLC) disclosed a security event where unauthorized code was inserted into customer website modules between October 2024 and October 2025. The code scraped payment card data (number, CVV, expiration) and customer contact info. 6 New Hampshire residents were affected. The company engaged forensic investigators, notified law enforcement and card brands, removed the code, and offered 12 months of credit monitoring via Experian. Notifications began December 15, 2025.
- Nebraska State AGvia Event Rental Systems2025-12-15
Event Rental Systems (dba Fullsteam Software Holdings LLC) disclosed a security event where unauthorized code was inserted into customer website modules to scrape payment card data (including CVV and expiration dates) and personal information between October 2024 and October 2025. The company removed the code, engaged forensic investigators, notified law enforcement and card brands, and offered 12 months of credit monitoring via Experian. No SSN or bank account data was impacted.