PCI DSS for Developers — The 12 Requirements That Protect Payment Data
Understanding PCI DSS requirements, SAQ levels, tokenization, and why Stripe handles most of the heavy lifting
The moment your app accepts a credit card, you've entered PCI DSS territory. That sounds intimidating, but here's the thing most developers don't realize: if you're using Stripe, Square, or any modern payment processor, you've already offloaded about 90% of the PCI burden.
The remaining 10% is still your responsibility, though. And understanding the full picture makes you a better developer, even if you never touch a raw card number.
What PCI DSS Actually Is
PCI DSS was created by the Payment Card Industry Security Standards Council — a consortium formed by Visa, Mastercard, American Express, Discover, and JCB. It's not a law in the traditional sense. It's a contractual requirement. If you want to accept cards from these networks, you agree to follow their rules.
The current ve
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