Technology
Authentication
The process of verifying the identity of a user, device, or system, typically through credentials like passwords, biometrics, or cryptographic keys.
Biological Context
Biological authentication is everywhere. Immune systems authenticate 'self' versus 'non-self' through molecular markers. Plants authenticate symbiotic bacteria through chemical signals. Parent birds authenticate offspring by unique calls. These systems distinguish legitimate partners from imposters.
Business Application
Authentication is the foundation of digital trust. Weak authentication enables fraud, data breaches, and identity theft. Multi-factor authentication combines something you know (password), something you have (device), and something you are (biometrics).