Fingerprint scanning is a biometric technology that identifies individuals based on the unique patterns of ridges and valleys on their fingertips. This method captures an image of a person's fingerprint using a scanner, which then converts it into a digital format for analysis. The scanned fingerprint is compared to a database of stored fingerprints to verify identity. Fingerprint scanning is commonly used in security systems, such as smartphones, laptops, and access control systems, due to its accuracy and ease of use. It provides a reliable way to authenticate users without the need for passwords.