The Federal Deposit Insurance Corporation (FDIC) has proposed new regulations requiring banks to maintain detailed records for fintech customers following the collapse of Synapse Financial Technologies, which left over 100,000 users unable to access their funds. The rule mandates that banks keep track of account ownership and daily balances for pooled accounts often used by fintechs, ensuring regulators can easily identify account holders and their funds in case of failures. This comes after Synapse's bankruptcy rendered $300 million in customer funds inaccessible, highlighting the risks associated with inadequate record-keeping in the fintech sector. The FDIC aims to enhance consumer protection and streamline the process for compensating depositors if a financial institution fails. Banks will need to either maintain their own ledgers for these accounts or have direct access to those maintained by fintechs for real-time reconciliation. This initiative reflects a response to growing concerns over the safety and accessibility of funds in fintech partnerships.