AnalysisGlobal
PCI SAQ A: what changed for embedded checkout
SAQ A still means the merchant never touches the card number. The January 2025 change is an eligibility rule for pages that embed the payment form.
Topic
security
5articles · all topics
GuideCheckout.com
Checkout.com webhooks: Cko-Signature in ASP.NET Core
How Checkout.com signs webhooks, why the raw body matters in .NET, and how to verify Cko-Signature without breaking model binding.
AnalysisUAE
The UAE's security profile: ten-minute tokens and no DPoP
What the AlTareq FAPI profile actually mandates — and the six places it narrows FAPI 2.0 into a single permitted option.
Guide
Validating webhook signatures in ASP.NET Core
The raw-body trap that breaks HMAC verification in .NET, why == is a vulnerability, and how three real providers sign — including one that does not.
AnalysisGlobal
FAPI 2.0: what compliance actually requires you to build
The MUST-level requirements of the FAPI 2.0 Security Profile, and which of your existing OAuth assumptions each one breaks.