diff --git a/src/main/java/com/assu/server/domain/auth/controller/AuthController.java b/src/main/java/com/assu/server/domain/auth/controller/AuthController.java
index 848c2c3a..b0e78e79 100644
--- a/src/main/java/com/assu/server/domain/auth/controller/AuthController.java
+++ b/src/main/java/com/assu/server/domain/auth/controller/AuthController.java
@@ -305,7 +305,7 @@ public BaseResponse<RefreshResponse> refreshToken(
                     "- 처리: Refresh 무효화(선택), Access 블랙리스트 등록.\n" +
                     "- 성공 시 200(OK)."
     )
-    @DeleteMapping("/logout")
+    @PostMapping("/logout")
     public BaseResponse<Void> logout(
             @RequestHeader("Authorization")
             @Parameter(name = "Authorization", description = "Access Token. 형식: `Bearer <token>`", required = true,
diff --git a/src/main/java/com/assu/server/domain/chat/config/WebSocketConfig.java b/src/main/java/com/assu/server/domain/chat/config/WebSocketConfig.java
index cdb02cb4..7e87bf5d 100644
--- a/src/main/java/com/assu/server/domain/chat/config/WebSocketConfig.java
+++ b/src/main/java/com/assu/server/domain/chat/config/WebSocketConfig.java
@@ -1,6 +1,7 @@
 package com.assu.server.domain.chat.config;
 
 import org.springframework.context.annotation.Configuration;
+import org.springframework.messaging.simp.config.ChannelRegistration;
 import org.springframework.messaging.simp.config.MessageBrokerRegistry;
 import org.springframework.web.socket.config.annotation.*;
 
@@ -8,25 +9,27 @@
 @EnableWebSocketMessageBroker
 public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
 
+
     @Override
     public void registerStompEndpoints(StompEndpointRegistry registry) {
-        registry.addEndpoint("/ws/chat")  // 클라이언트 WebSocket 연결 지점
+        registry.addEndpoint("/ws")  // 클라이언트 WebSocket 연결 지점
                 .setAllowedOriginPatterns(
+                        "*",
+                        "https://assu.shop",
                         "http://localhost:63342",
                         "http://localhost:5173",     // Vite 기본
                         "http://localhost:3000",     // CRA/Next 기본
                         "http://127.0.0.1:*",
-                        "http://192.168.*.*:*")       // 같은 LAN의 실제 기기 테스트용
-                .withSockJS();             // fallback for old browsers
+                        "http://192.168.*.*:*");       // 같은 LAN의 실제 기기 테스트용
+                      // fallback for old browsers
 
-        // ✅ 모바일/안드로이드용 (네이티브 WebSocket)
-        registry.addEndpoint("/ws/chat-native")
-                .setAllowedOriginPatterns("*"); // wss 사용 시 TLS 세팅
     }
 
     @Override
     public void configureMessageBroker(MessageBrokerRegistry registry) {
         registry.setApplicationDestinationPrefixes("/pub"); // 클라이언트가 보내는 prefix
         registry.enableSimpleBroker("/sub"); // 서버가 보내는 prefix
+        registry.enableSimpleBroker("/certification"); // 인증현황을 받아보기 위한 구독 주소
+        registry.setApplicationDestinationPrefixes("/app"); // 클라이언트가 인증 요청을 보내는 주소
     }
 }
diff --git a/src/main/java/com/assu/server/global/apiPayload/code/status/SuccessStatus.java b/src/main/java/com/assu/server/global/apiPayload/code/status/SuccessStatus.java
index 0c41f665..175a1a97 100644
--- a/src/main/java/com/assu/server/global/apiPayload/code/status/SuccessStatus.java
+++ b/src/main/java/com/assu/server/global/apiPayload/code/status/SuccessStatus.java
@@ -19,7 +19,7 @@ public enum SuccessStatus implements BaseCode {
     MEMBER_CREATED(HttpStatus.CREATED, "MEMBER_201", "성공적으로 생성되었습니다."),
 
     //인증 관련 성공
-    SEND_AUTH_NUMBER_SUCCESS(HttpStatus.OK, "AUTH_200", "성공적으로 조회되었습니다."),
+    SEND_AUTH_NUMBER_SUCCESS(HttpStatus.OK, "AUTH_200", "성공적으로 전송되었습니다."),
     VERIFY_AUTH_NUMBER_SUCCESS(HttpStatus.OK, "AUTH_201", "성공적으로 생성되었습니다."),
 
     //신고 성공
diff --git a/src/main/java/com/assu/server/global/config/SecurityConfig.java b/src/main/java/com/assu/server/global/config/SecurityConfig.java
index 06b36422..6856c80b 100644
--- a/src/main/java/com/assu/server/global/config/SecurityConfig.java
+++ b/src/main/java/com/assu/server/global/config/SecurityConfig.java
@@ -30,9 +30,6 @@ public SecurityFilterChain filterChain(HttpSecurity http, JwtAuthFilter jwtAuthF
                                 "/swagger-resources/**", "/webjars/**"
                         ).permitAll()
 
-                        // 로그아웃은 인증 필요
-                        .requestMatchers("/auth/logout").authenticated()
-
                         .requestMatchers(// Auth (로그아웃 제외)
                                 "/auth/phone-verification/send",
                                 "/auth/phone-verification/verify",