Biometric authentication is a security method that uses unique biological traits like fingerprints and facial recognition to verify identities, offering higher security than traditional methods. Its advantages include faster authentication and enhanced security, while disadvantages encompass privacy concerns and vulnerability to spoofing. Applications span mobile security, access control, and healthcare, facilitating secure transactions and identity verification.

1. Biometric Authentication
Methods, Advantages, and Disadvantages

2. What is Biometric Authentication?
Biometric authentication is a security process that
uses unique biological characteristics—such as
fingerprints, facial recognition, or retina scans—to
verify an individual’s identity.
Unlike traditional methods like passwords or PINs,
biometrics offer higher security because they are
inherently linked to the individual and more
challenging to replicate or steal.

3. Verification
Storage
Enrollment
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The user’s biometric data (e.g.,
fingerprint, facial features) is
captured and stored in a secure
database.
The captured biometric data is
converted into a digital template
and securely stored for future
comparison.
When authentication is needed,
the user’s biometric data is
captured again and compared
to the stored template to
confirm identity.
How Does Biometric Authentication Work?

4. Fingerprint
Biometric Authentication Methods
Analyzes unique patterns on fingertips.
Facial Recognition
Recognizes distinctive facial features.
Iris Recognition
Identifies unique patterns in the iris of the eye.
Voice Recognition
Analyzes vocal patterns and speech characteristics.
Behavioral Biometrics
Examines typing patterns, gait, or signature.

5. Advantages of Biometric Authentication
Faster
Authentication
Improved
Convenience
Reduced
Fraud
Increased
Accuracy
Enhanced
Security
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6. Disadvantages of Biometric Authentication
1 Privacy Concerns
2 Vulnerability to Spoofing
3 Cost
4 Accessibility Issues
5 Data Breach Implications

7. Applications of Biometric Authentication
Fingerprint or facial recognition
for unlocking smartphones and
authorizing payments.
Mobile Security
Biometric verification for entering
buildings, restricted areas, or
accessing computer systems.
Access Control
Enhancing security for online
banking, ATM withdrawals, and
digital payments.
Financial Transactions
Efficiently verifying identities of
travelers through passport
control using facial recognition.
Border Control
Secure patient identification,
access to medical records, and
drug dispensing.
Healthcare
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