No Authentication
No Authentication is a security concept where a system or application does not require users to prove their identity through credentials like passwords, tokens, or biometrics before granting access. It typically applies to public or open resources where user identification is unnecessary, such as static websites, public APIs, or anonymous services. This approach simplifies access but eliminates user-specific tracking and personalized features.
Developers should use No Authentication when building systems that serve public, non-sensitive data where user identity is irrelevant, such as informational websites, open data APIs, or demo applications. It reduces development complexity and improves accessibility by removing login barriers, but it is unsuitable for scenarios requiring data privacy, user accountability, or personalized content, like banking apps or social networks.