diff --git a/300_architecture/380_authentication_system.md b/300_architecture/380_authentication_system.md
index db87a5d..3b898cc 100644
--- a/300_architecture/380_authentication_system.md
+++ b/300_architecture/380_authentication_system.md
@@ -139,11 +139,6 @@ sequenceDiagram
 - HTTPS only cookies
 - JWT 서명 검증
 
-### 추가 필요 사항
-- PKCE (Proof Key for Code Exchange)
-- Refresh Token 구현
-- Rate Limiting 및 본인 확인(user_id=JWT.sub 매칭)
-- 토큰 암호화 저장
 
 ## 환경 변수