Policy requires that we have your name, address, and date of birth on file before you can make large transactions with your Coinbase account.
For new customers, when you make a large transaction you will be prompted to complete your personal information before your trade is made.
If you're an existing Coinbase customer and you've made a large transaction in the past, you'll be prompted to enter your personal information the next time you make a transaction with your account.
If you don't want to provide your information and want to use a different provider, you can close your Coinbase account from your Security Settings page, which will let you transfer your funds to another account.
We collect necessary information to allow our customers to use our products and services. This primarily includes data collection that is mandated by law—such as when we must comply with anti-money laundering laws, or to verify your identity and protect you from potential fraudulent activity. We may also collect your data to enable certain services, improve our products, and keep you notified of new developments (based on your preferences). We do not, and will not, sell your data to third parties without your consent.
Read more about Data Privacy at Coinbase.