Security
Authentication
The process of verifying the identity of a user or system.
Why it matters
- Prevents unauthorized access to systems
- Foundation for all access control
- Required for personalized experiences
When to use
- When users need to log in
- When APIs need to verify callers
- When tracking user-specific data
Common mistakes
- Storing passwords in plain text
- Not implementing rate limiting on login
- Using weak or predictable session tokens
Related terms
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