PCI DSS Payment

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PCI DSS (Payment Card Industry Data Security Standard) is a regulatory framework for securing credit card data. Companies handling card payments must achieve Level 1-4 compliance. Mastery takes 8-12 weeks and covers: encryption, tokenization, network segmentation, access controls, breach protocols. PCI compliance is non-optional for payment processors, e-commerce, and SaaS subscription platforms. Engineers who master PCI command 30-50% salary premium; compliance failures cost companies millions in fines and trust damage.

PCI DSS Payment이란

PCI DSS (Payment Card Industry Data Security Standard) is a security framework mandated by Visa, Mastercard, and other card networks to protect cardholder data. Any company handling credit cards, payment processors, e-commerce platforms, SaaS with subscriptions, must comply. PCI DSS has 12 core requirements: (1) Install firewall. (2) No hardcoded passwords. (3) Encrypt data in transit and at rest. (4) Maintain access logs. (5) Protect against malware. (6) Keep systems patched. (7) Restrict access to card data. (8) Track and monitor all access. (9) Physical security. (10) Incident response plan. (11) Regular vulnerability scanning. (12) Security policy documentation.

🔧 도구 & 생태계

Stripe APIAdyenPCI compliance scannersHSM (Hardware Security Modules)Tokenization servicesEnd-to-end encryptionSSL/TLS protocolsPCI audit tools

💰 지역별 연봉

지역	주니어	미들	시니어
USA	$95k	$155k	$240k
UK	$60k	$100k	$155k
EU	$65k	$110k	$165k
CANADA	$95k	$160k	$250k

🎓 자격증

PCI DSS Certification (QSA or ISA)Stripe PCI Compliance Guide SANS PCI DSS Training

❓ 자주 묻는 질문

What's the difference between PCI Level 1 and Level 4?

Level 1: handling 6M+ transactions/year; requires external audit annually. Level 4: <20K transactions/year; self-assessment OK. Bigger volume = stricter controls. Most SaaS are Level 3-4 unless they're payment processors (Level 1).

Do I need PCI compliance if I use Stripe's hosted checkout?

No. Stripe's Hosted Payment Form or Payment Element = Stripe handles PCI compliance, not you. If you build custom checkout and handle card data directly, yes, you need Level 1-4 compliance.

How often do PCI audits happen?

Annually for Level 1. Every 2 years for Levels 2-3. Level 4 can self-assess annually. If you have a breach, you must scan quarterly until compliance is restored.

What data do I need to encrypt?

Card number (PAN), CVV, expiry, PIN. Everything else (customer name, address) is not PCI-regulated. Use tokenization: replace PAN with a token that only your payment processor can decrypt. Never store raw PAN.

What happens if we fail a PCI scan?

You have 30 days to fix issues (vulnerabilities, missing logs, misconfigured firewall). If you don't fix in time, your acquiring bank may suspend payment processing. Really serious: public breach = potential lawsuits and permanent reputational damage.

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