Odaily Planet Daily News: The crypto platform Stackup, founded by former SpaceX mission manager John Rising, has completed a $4.2 million seed funding round, led by 1kx, with participation from Y Combinator and Digital Currency Group. The platform offers a 'centralized control' solution for decentralized assets through account abstraction technology, supporting features such as spending limits and batch transaction review. Rising emphasizes the importance of system security design based on his aerospace engineering experience, pointing out that the current crypto sector overly focuses on security protection while neglecting operational safety. The Stackup team currently consists of 4 members, and their technology has previously been applied in the wallet development of Coinbase and Trust Wallet. (Decrypt)