Payment Page Script Control
Explain why payment-page scripts require inventory, authorization, integrity, and change monitoring.
The reframe: The customer's browser is part of the payment trust boundary. Inventory what executes List first-party and third-party scripts, tag manager containers, nested loads, and script-capable widgets. Unknown scripts are not just housekeeping issues; they are unknown code running near payment data. Authorize the business purpose Each script needs an owner and reason. "Marketing asked" is not enough. The purpose should explain why the script belongs on a payment page and what data it is allowed to observe. Detect unauthorized change Use CSP, subresource integrity where feasible, tag-manager permissions, file integrity monitoring, or page-change detection to know when the…
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