Credit card chip closeup macro photography of EMV chip

Macro close-up of an EMV chip on a credit card, revealing the gold contacts and encapsulated microprocessor surface.

About this subject

The EMV chip (Europay, Mastercard, and Visa) is the global standard for card payments, present on billions of plastics issued in over 190 countries. Unlike old magnetic stripes, which store static data and are vulnerable to cloning, the chip generates a dynamic code for each transaction, making cloning virtually impossible. The technology was introduced in Europe in the 1990s and gradually adopted in Brazil from 2014, with mandatory issuance for new cards. The chip contains a microprocessor that communicates with the payment terminal via gold-plated contacts visible on the surface. These contacts are gold-plated to ensure conductivity and corrosion resistance. The encapsulated area protects the integrated circuit from physical damage and static electricity. In Brazil, the migration to chip significantly reduced in-person fraud, although challenges remain with contactless payments (NFC) and online purchases. The macro image highlights the symmetrical design and soft lighting of an overcast day, ideal for revealing metallic details without harsh reflections.

Frequently Asked Questions

Why are the EMV chip contacts gold-plated?

Gold is used for its excellent electrical conductivity and resistance to corrosion, ensuring reliable contact over years of use.

Is the EMV chip secure against online fraud?

The chip protects in-person transactions, but for online purchases, CVV, 3D Secure authentication, or digital wallets are needed.

When did chip cards become mandatory in Brazil?

Mandatory issuance for new cards started in 2014, with a deadline for full fleet replacement by 2018.