How Google uses credit card numbers for payments
Google uses the credit card and debit card numbers you provide to facilitate payments for the online or offline purchases you make, including Google Play and Google Pay transactions, and for fraud mitigation purposes. The Google Payments Privacy Notice provides detailed information about how we use your payment and account information, including the information we collect and how we share it. We only share personal information with third parties in the circumstances described in the Google Payments Privacy Notice. The credit card and debit card numbers you provide to Google are encrypted and stored on secure servers in a secure location.