It works quite well in practice, as KYC (know your customer) is in order for every state that has legalized it. Typically, a government-issued id#, SSN (last 4)

It works quite well in practice, as KYC (know your customer) is in order for every state that has legalized it. Typically, a government-issued id#, SSN (last 4), and perhaps a license photo or selfie are required to open an account.