Topstep LLC Data Breach – Investigated by Federman & Sherwood
Oklahoma City, Oklahoma (December 29, 2025) – Federman & Sherwood announces that it is investigating a data breach involving Topstep LLC, following a notification filed with the Texas Attorney General.
The notification indicates that personal information may have been compromised, including names, addresses, Social Security numbers, and other information. The company reported that 222 Texans were affected.
Topstep stated that affected individuals were notified via U.S. mail. The notice was published on December 22, 2025.
Federman & Sherwood is investigating the incident to determine whether adequate cybersecurity measures were in place and what legal rights may be available to impacted individuals.
The compromised information may have included:
- Full name
- Social Security number
- Other sensitive information
What is Topstep LLC?
Topstep LLC is a Chicago-based financial technology company and proprietary trading firm that provides individual day traders with access to corporate capital for futures trading.
“Individuals concerned about their data security may contact Federman & Sherwood for more information at 1-800-237-1277 or info@federmanlaw.com.