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Biometrics

Biometrics uses unique physical characteristics—such as fingerprints or eye scans—to verify identity in a way that cannot be lost, duplicated, or stolen. This makes it a more secure authentication factor compared to tokens or cards.

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About this video

Biometrics is an authentication method that verifies identity based on measurable physical characteristics unique to an individual. Because these traits are biological rather than assigned or manufactured, they cannot be lost, shared, or stolen in the way that access cards, passwords, or hardware tokens can be. This makes biometrics one of the most reliable factors available when designing secure access control systems. Common biometric identifiers include fingerprints, iris and retinal scans, facial geometry, and other physiological features. Fingerprint readers are among the most widely deployed implementations—a user places a finger on the scanner, the device captures the unique ridge pattern, and access is granted only when the scan matches a stored profile. As organizations seek stronger authentication strategies, biometrics plays an increasingly central role in both standalone systems and multi-factor authentication frameworks.

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What's covered

Biometrics

Key terms

Biometrics
Authentication methods that use unique physical or behavioral characteristics such as fingerprints or retinal scans.
Authentication
The process of verifying the identity of a user, device, or system.
Access Control
A security mechanism that restricts access to resources based on policies, roles, or identity.
Fingerprint Scanner
A biometric device that captures and analyzes a person's unique fingerprint pattern to verify identity and grant access.

Topics

Biometrics Identity Verification Authentication Access Control Cybersecurity

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