Defending Vela Pay's card-data flow from capture to settlement with the payment defense stack of eight layers — data, tokenization, encryption, 3-D Secure, fraud, APIs, reconciliation and compliance — each stopping what the others miss; one card's journey where the number is tokenized at capture, challenged with 3DS2 and settled and reconciled; and the flaws Omar found and fixed: CVV2 in application logs, a phone-order endpoint taking raw card numbers, an unencrypted nightly copy of card data, and raw numbers touching three services before tokenization.

CY-MID-095Mid Level · Payment Security

Payment Systems Security — The Payment Defense Stack

A hands-on mid-level course that secures how money moves through an application. Work the payment defense stack - eight layers: Data, Tokenization, Encryption, 3-D Secure, Fraud, APIs, Reconciliation, and Compliance - protecting cardholder data with tokenization, strong authentication, and fraud controls so a payment flow is not the weak link. Strictly defensive. Four hands-on activities in every lesson.

15 hours8 chapters32 lessons225 activities8 labs

What you'll learn

Minimise and tokenize cardholder and payment data.
Encrypt payment data and apply 3-D Secure strong authentication.
Add fraud controls and secure payment APIs.
Reconcile safely and meet payment compliance.

Price:৳8,000