When registering for the Betway app in the US, you may be asked to provide your Social Security Number (SSN). This may raise questions for some users, but providing your SSN is necessary for a few reasons:

1. Identity verification: Betway is required by law to verify the identities of its customers, and providing your SSN is one way to do so. It helps Betway confirm that you are who you say you are and prevents fraud and underage gambling.

2. Tax reporting: If you win a certain amount of money on the Betway app, Betway is required to report your winnings to the Internal Revenue Service (IRS). Your SSN is necessary for tax reporting purposes and to ensure that Betway complies with all applicable tax laws.

3. Responsible gaming: Betway takes responsible gaming seriously, and verifying your identity is one way to ensure that you are not gambling more than you can afford. By providing your SSN, Betway can check your credit report and make sure that you are not experiencing financial difficulties.

Rest assured that Betway takes the security of your personal information seriously and uses industry-standard security measures to protect your data.