A custodial wallet of a certain centralized trading platform was attacked due to a system vulnerability, resulting in user asset losses. This incident has hurt many people.

But it also exposes a more painful reality — many public blockchains boast about building decentralized network systems, but how many users actually understand that when they open their wallets and initiate transactions every day, they are still dealing with some centralized intermediary? The wallet you use might be hosted on the platform, the nodes you access might also be provided by centralized service providers, and even balance inquiries may rely on their APIs.

Between the ideals of decentralization and practical applications, there always seems to be an invisible wall.