Security & compliance, Guides
PCI DSS, fraud and chargebacks. 7 pieces in guides, written for merchants worldwide: what security & compliance covers, what to check on your own statement, and the decisions it changes.
Security & compliance
Security & compliance
PCI DSS, fraud and chargebacks.
On this shelf
A laptop showing a dashboard beside a hand holding a phone 7 PCI Compliance Myths That Cost Merchants Money (or Get Them Breached)
PCI DSS applies to every business that accepts cards, regardless of size, and the most expensive misunderstandings are consistent: believing the processor's compliance covers the merchant, treating the annual questionnaire as the whole obligation, storing card numbers 'temporarily', and paying non-compliance fees instead of completing a form. The realistic good news: with hosted payments and validated terminals, most small merchants' actual obligations are modest.
ExploreA laptop showing a dashboard beside a hand holding a phone Card-Present vs Card-Not-Present: Why the Same Card Costs You Different Amounts
A card-present transaction physically reads the card by tap or chip, generating a cryptogram that proves the card was there; a card-not-present transaction, online, keyed or over the phone, cannot prove it. That single difference drives higher interchange, higher fraud exposure and different chargeback liability on CNP payments, and it is partially within a merchant's control: every payment moved from keyed to tapped, or protected by 3-D Secure and AVS, moves the odds back.
Explore
What Is 3D Secure, and Does It Reduce Fraud or Hurt Conversion? What Is 3D Secure, and Does It Reduce Fraud?
3D Secure (3DS) is an extra authentication step where the cardholder's bank confirms the customer is real — via app approval, one-time code, or biometrics — before approving an online payment. It reduces stolen-card fraud and unauthorized chargebacks, but forcing it on every order adds friction. Risk-based 3DS challenges only medium- and high-risk orders, protecting revenue without hurting conversion.
Explore
Best Practices for Managing Credit Card Information in E-commerce Best Practices for Managing Credit Card Data in E-Commerce
To manage credit card information securely in e-commerce, comply with PCI DSS, encrypt data in transit with TLS and at rest with AES, tokenize stored card numbers, integrate a PCI-compliant payment gateway, restrict access to authorized personnel, run regular security audits, train employees on threats like phishing, and maintain an incident response plan for breaches.
Explore
Guidelines for PCI DSS Compliance in Credit Card Payment Integration on Websites PCI DSS Compliance Guidelines for Websites
PCI DSS is the Payment Card Industry Data Security Standard, a set of security requirements for any business that stores, processes or transmits credit card data. Websites achieve compliance by determining their level from annual transaction volume, running a gap analysis, encrypting and tokenizing cardholder data, restricting access, training staff and auditing security regularly.
Explore
5 Tips to Ensure Secure Credit Card Processing for Your Online Store Secure Credit Card Processing: 5 Tips for Online Stores
Secure credit card processing for an online store rests on five practices: choose a reputable payment gateway that encrypts customer data, implement SSL encryption so card numbers are scrambled in transit, comply with PCI DSS standards, monitor transactions with fraud detection tools like AVS and velocity checks, and train both staff and customers on security best practices.
Explore
Demystifying the CVV on Credit Cards: What You Need to Know What Is the CVV on a Credit Card?
The CVV (Card Verification Value) is the three-digit code on the back of Visa and Mastercard cards, or the four-digit code on the front of American Express cards, that verifies the cardholder physically holds the card. It is generated by the issuer with cryptographic algorithms, is never stored on the magnetic stripe or chip, and is required mainly for online and other card-not-present transactions.
Explore
