Why am I being asked for sensitive information?

Stripe Express partners with online platforms to file 1099 tax forms that summarize your earnings. Stripe Express allows you to review your tax information, download your tax forms, and track your earnings. In order to file tax forms we need to establish your account details including legal entity information and personal information such as name, address, and taxpayer identification numbers, and view and update your bank account information for payouts.

Stripe’s security tools and best practices ensure that your sensitive information is safely stored and encrypted. Learn more about the safeguards we've put in place to protect your information.

Please make sure to keep your login credentials for Stripe Express secure.

Reference:
https://support.stripe.com/express