Harpie, a web3 security provider backed by Coinbase Ventures, has announced its immediate shutdown due to financial difficulties. The company, which aimed to create a theft-free crypto ecosystem, was unable to develop a sustainable business model. Harpie had previously raised $4.5 million in a seed round led by Dragonfly Capital, with participation from Coinbase Ventures and OpenSea, to build its blockchain protection service for Ethereum wallets. Despite the closure, Harpie expressed hope that other companies will continue to address the ongoing security challenges in the crypto space.