Like a well-intentioned white-hat hacker who, after a wallet has been emptied, goes back and proactively rebuilds the ledgers—this vulnerability incident SecondFi carried out in the Cardano ecosystem is pretty strongly flavored with “white hat.” They completed forensics in two days, cut a snapshot, and prepared to roll back the assets; the entire response window was squeezed down to two weeks. The key is the accuracy of how they finally restore the assets—whether they revalue them using snapshot prices or return them by the original coins back along the original route. Only the latter truly tests the real capability of on-chain governance and contract upgrades.