Yes, through TD Ameritrade, which Schwab owns. In 2023 criminals exploiting the MOVEit Transfer zero-day stole files from a TD Ameritrade MOVEit application between 28 and 30 May. Schwab’s counsel told Maryland’s Attorney General that “No other TD Ameritrade or Schwab systems or data were impacted”. Data included names, Social Security numbers, account information, dates of birth and government ID numbers. A class action put the total at about 61,160 people; Schwab had earlier estimated up to 0.5% of TD Ameritrade clients.
Separately, Schwab notified clients in 2022 that between 18 May and 16 December 2021 some chat and email messages sent through Schwab.com went to external email systems by mistake, possibly including Social Security, ID and passport numbers or usernames and passwords. That was an error, not an intrusion.
We found no breach of Schwab’s core brokerage systems from 2016 to 2026 in the sources we read, and no SEC or FINRA cybersecurity penalty. Before this window, in 2016, Schwab warned clients of logins with passwords stolen from other sites.