Could you please elaborate on the potential risks associated with sharing my Social Security Number (SSN) with Coinbase? As a cryptocurrency user, I'm concerned about the security of my personal information. What measures does Coinbase take to ensure the safety of sensitive data like SSNs? Are there any known cases of data breaches or misuse of customer information at Coinbase? Additionally, is it a standard practice in the cryptocurrency industry to require SSNs for account verification? I'd appreciate your insights on this matter.