A full Social Security Number is needed to complete Know Your Customer (KYC) requirements.

Previously the last 4 of a Social Security Number was sufficient, but these requirements are frequently updated by financial regulators, card networks, and other financial institutions.

Owners that were able to previously verify with Last 4 may need to enter in their full Social Security Number to update their verification. Failure to provide a full Social Security Number can result in a pause of payouts or even a pause in processing.