Fireblocks, the cryptocurrency infrastructure firm, has come to the rescue of smart contract wallet UniPass by addressing a vulnerability known as the ERC-4337 account abstraction vulnerability. This vulnerability, which was discovered during a white hat hacking operation, allowed potential attackers to take over the UniPass Wallet by manipulating Ethereum’s account abstraction process. Fireblocks and UniPass worked together to patch this vulnerability and prevent any further damage. The vulnerability affected several hundred users, but the wallets in question only held small amounts of funds. Fireblocks’ research team managed to exploit the vulnerability in a white hat operation and shared their findings with the UniPass team, who implemented the necessary fixes. This incident highlights the ongoing challenges in implementing account abstraction functionality in Ethereum and the need for further improvements in the protocol.