BetMGM requires your SSN to comply with legal regulations for verifying your identity and age, ensuring responsible gambling practices, and preventing fraud and money laundering. Providing your SSN helps maintain a secure and trustworthy online betting environment. Additionally, it enables BetMGM to report winnings accurately to tax authorities, as required by law. Rest assured that BetMGM takes the protection of your personal information seriously and implements stringent security measures to safeguard your data.