Topic
Architecture
Payment security architecture is how controls, data and verification steps are arranged so that a payment instruction can be trusted before money moves.
These pieces look at payment trust as a system design problem: where verification belongs, what should be recorded, and how controls hold up when people are deceived.
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All architecture research (3)
- The AI AML audit trail is what survives the override
A score can explain a pause. It cannot, by itself, defend the release, the callback, or the exception that came before settlement.
September 9, 2026
- Even if a bank adds scam warnings, biometrics and extra friction, corporate BEC payment controls still have to prove the changed payee before release.
Bank warnings test the session. The release file still has to show how the changed beneficiary got into AP.
August 14, 2026
- You secured the rail. The instruction stayed open.
The paper frames payments as six layers, with trust and verification sitting outside the faster rail buildout.
July 2, 2026
Key terms
- Segregation of duties
Segregation of duties is the control principle that no single person can both create and approve a payment or a change to payment data, so that one compromised or coerced individual cannot complete a fraudulent transaction alone.
- Out of band verification
Out of band verification confirms a request over a channel entirely separate from the one that carried it, so that compromise of a single channel cannot both make and confirm the request.
- Bank account validation
Bank account validation is the process of confirming that a bank account exists, is open, and belongs to the party expected to own it, before that account is used to receive funds.
Questions
Why treat payment security as architecture rather than training?
Controls that assume people can be deceived keep working when someone is deceived, while training alone depends on every person catching every attempt.