How do Chip Cards Work?

A chip card is like a tiny computer inside your wallet that helps you pay without needing cash or paper money.

Chip cards have a small chip on them, think of it like the brain of the card. When you tap your card on a reader, the chip talks to the reader using secret messages, just like when you whisper a secret to a friend and only they can hear it.

The chip inside the card uses numbers to say "I am who I say I am." These numbers are like a special password that only your bank knows. When you pay with your chip card, it sends this password to the reader, and if it matches what the bank expects, the payment goes through, just like when you give your friend the right password, and they let you into their room.

Old cards had stripes that would scratch off numbers when you swiped them. Chip cards are smarter, they don’t need to be scratched; they can talk directly to the reader like a phone call instead of writing a letter. That makes payments faster and safer!