Credit card chip closeup macro photography of EMV chip

EMV chip on a credit card in macro photography: security technology that revolutionized global payments.

About this subject

The EMV chip (Europay, Mastercard and Visa) is a microprocessor embedded in credit and debit cards that stores and processes encrypted data, making transactions more secure than traditional magnetic stripes. Commercially introduced in the mid-1990s, the EMV standard was gradually adopted worldwide, with Brazil starting the migration in 2010 and completing most of the replacement by 2015. Each chip contains a unique cryptographic key that generates a dynamic code for each transaction, preventing cloning by skimming, a common issue with magnetic stripes. The technology is regulated by EMVCo, a consortium formed by the major card networks, which defines technical specifications for global interoperability. Currently, over 10 billion chip cards are in circulation, and the technology continues to evolve with the adoption of contactless payments (NFC) and biometric authentication integrated into the chip.

Frequently Asked Questions

What does EMV stand for?

EMV stands for Europay, Mastercard and Visa, the three companies that originally created the security standard for chip cards.

How does the EMV chip protect against fraud?

The chip generates a unique encrypted code for each transaction that cannot be reused. This prevents stolen data from being used to create cloned cards.

Do all cards in Brazil have an EMV chip?

Since 2015, most credit and debit cards issued in Brazil have an EMV chip, although some older cards may still have only a magnetic stripe.