Topstep Data Breach Compromises SSNs & Names

On Dec. 22, 2025, proprietary trading firm Topstep LLC reported a significant data breach, exposing personally identifiable information.

According to the Texas Attorney General, the breach compromised names, addresses, Social Security number information and other personal details. While the precise method of the breach and the identity of the perpetrator have not been detailed in public filings, the inclusion of Social Security numbers among the exposed data suggests a significant risk of identity theft for those affected.

At this time, there is no public information on how the breach occurred. However, the exposure of personally identifiable information (PII) such as Social Security numbers makes this breach particularly severe, as this data can be used to commit financial fraud or identity theft.

So far, the cybersecurity incident has impacted at least 211 individuals in Texas. However, this is an ongoing investigation, and the number of impacted individuals is subject to change. The company notified affected individuals by U.S. mail.

Topstep’s response

While specific details about additional support or resources for affected customers have not been made public, individuals whose Social Security numbers and other sensitive information were compromised should take immediate steps to protect themselves.

If you believe your personal information may have been compromised in this breach:

• Carefully review any notice or communication you receive from Topstep or a company that does business with Topstep.
• Monitor financial accounts and credit reports for signs of identity theft.
• Consider placing fraud alerts or credit freezes with the major credit bureaus.
• Be cautious of unsolicited emails or phone calls requesting personal information.