Magnetic stripe

A magnetic stripe is a flexible strip on the back of a credit card or ID card containing tiny magnetic particles. These particles store data that identifies the card and account details. When swiped through a card reader, the reader detects and interprets the magnetic signals to verify and process transactions or access information. The magnetic stripe's data can be rewritten using specialized equipment, making it a reusable and cost-effective method for storing identification and payment information. It’s a common and reliable technology used worldwide for secure transactions.