TD Ameritrade, Inc. disclosed a data breach involving unauthorized access to its MOVEit Transfer software application between May 28 and May 30, 2023. The incident was discovered on May 30, 2023. Affected data includes names, Social Security numbers, financial account information, dates of birth, and government ID numbers. TD Ameritrade halted use of the software, engaged independent experts, notified law enforcement, and is offering two years of credit monitoring.