So if I’m a single supplier and I want to act as a hostile actor in order to negotiate better terms or something, does my refusing to sign mean that _all_ supplier transactions are reversed or at least slowed on chain? Is there an actual attack surface here?
Also, if I’m adding a new supplier in this example, do I have to spin up an entirely new “virtual bank” to do so? Or can I just add them to the current one? What is the user experience there?