Same check. Every sector.
Something is about to happen that is hard to undo. Nexus checks the rules first. If it is risky, a person decides. You keep a record, including when the answer was no. Same idea in every industry. We do not replace the systems you already run.
A person or an AI wants to send money, release a payment, or change an account. Nexus checks the rules first. If the amount or the destination looks off, a person has to say yes. You can show later who allowed it, or that it never went out.
A person
If it is risky
It stops
If it is blocked
A record
Afterwards
A payment of €25,000 is about to go out.
Nexus: wait. This needs a person.
Finance reviews it and writes a reason.
Approved. The payment can proceed.
A receipt is saved. If Nexus had said no, nothing would have moved.