noun
simple authentication
Computing term for a lightweight or basic authentication method, often contrasted with stronger multi-factor or biometric authentication.
このシステムでは簡易認証のみが実装されている。
Only simple authentication is implemented in this system.
簡易認証ではパスワードだけを使うことが多い。
Simple authentication often uses only a password.
Compound of 簡易 (simple, easy) and 認証 (authentication). A straightforward technical term with no obscure historical derivation.