What is the most widely used biometric method today?

Fingerprint scanning is the most widely used biometric method today due to several factors. Primarily, fingerprints are unique to each individual and remain relatively unchanged throughout a person's life, making them a reliable option for identification. The technology for capturing and analyzing fingerprint patterns has advanced significantly, allowing for quick and accurate readings.

Additionally, fingerprint scanners are cost-effective and can be easily integrated into various devices, from smartphones to security systems. Their widespread availability and user familiarity contribute to their popularity in applications ranging from mobile device security to access control in secure facilities. The simplicity of using fingerprint scanning—simply placing a finger on a scanner—makes it user-friendly, further driving its adoption across different sectors. In contrast, while other biometric methods may offer their own advantages, they are generally less prevalent in everyday use compared to fingerprint scanning.