The breach allowed unauthorised personnel to see “personal information of some patrons such as name, contact information (such as postal address, email address and telephone number), date of birth, hashed Social Security number, account identifiers (such as player ID and screen name) and information related to transactions with BetMGM”.
BetMGM is an online sportsbook for sports betting, including live sports betting and parlays for the NFL, NBA, MLB, NHL.