What is Facial Recognition?
Technology that identifies or verifies individuals by analyzing facial features from photos or video footage, increasingly used for mass surveillance.
Facial recognition systems map facial features to create a unique "faceprint" that can be compared against databases of known faces.
How It's Used
- Law enforcement: Identifying suspects from CCTV footage
- Border control: Automated passport verification
- Retail: Tracking customers in stores
- Social media: Automatic photo tagging
- Access control: Phone unlock, building entry
Privacy Concerns
- Enables mass surveillance without consent
- Often deployed without public knowledge
- Disproportionate error rates for people of color
- No way to change your face if the database is breached
- Chilling effect on public assembly and protest
Protection
- Wear masks, hats, or IR-reflective glasses
- Avoid looking directly at cameras
- Support legislation banning government facial recognition
- Some cities and states have banned police use of facial recognition
Related Terms
Biometrics
Authentication using unique physical or behavioral characteristics like fingerprints, facial features, iris patterns, or voice. While convenient, biometrics have a fundamental problem: you can't change them if compromised.
Metadata
Data about data. In the context of communications, metadata includes information like who you contacted, when, for how long, and from where—everything except the actual content of your message. Metadata can reveal intimate details about your life even when content is encrypted.
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