diff --git a/src/main/java/com/dnd/gongmuin/security/handler/CustomAuthenticationEntryPoint.java b/src/main/java/com/dnd/gongmuin/security/handler/CustomAuthenticationEntryPoint.java
index 19a73863..2b18bd4d 100644
--- a/src/main/java/com/dnd/gongmuin/security/handler/CustomAuthenticationEntryPoint.java
+++ b/src/main/java/com/dnd/gongmuin/security/handler/CustomAuthenticationEntryPoint.java
@@ -1,6 +1,7 @@
 package com.dnd.gongmuin.security.handler;
 
 import java.io.IOException;
+import java.util.Arrays;
 
 import org.springframework.security.core.AuthenticationException;
 import org.springframework.security.web.AuthenticationEntryPoint;
@@ -20,6 +21,7 @@ public void commence(HttpServletRequest request, HttpServletResponse response,
 		AuthenticationException authException) throws IOException {
 
 		log.error("비인가 사용자 요청 -> 예외 발생 : {}", authException.getMessage());
+		log.error(Arrays.toString(authException.getStackTrace()));
 
 		response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);  // 401 Unauthorized
 		response.setContentType("application/json");
diff --git a/src/main/java/com/dnd/gongmuin/security/handler/CustomOauth2SuccessHandler.java b/src/main/java/com/dnd/gongmuin/security/handler/CustomOauth2SuccessHandler.java
index cc44d4e4..e6798b13 100644
--- a/src/main/java/com/dnd/gongmuin/security/handler/CustomOauth2SuccessHandler.java
+++ b/src/main/java/com/dnd/gongmuin/security/handler/CustomOauth2SuccessHandler.java
@@ -19,9 +19,11 @@
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
 @Component
 @RequiredArgsConstructor
+@Slf4j
 public class CustomOauth2SuccessHandler implements AuthenticationSuccessHandler {
 
 	private final MemberRepository memberRepository;
@@ -37,15 +39,20 @@ public void onAuthenticationSuccess(HttpServletRequest request, HttpServletRespo
 		Authentication authentication) throws IOException {
 
 		CustomOauth2User customOauth2User = (CustomOauth2User)authentication.getPrincipal();
+		log.error("CustomOauth2User = ", customOauth2User.getEmail());
 
 		String socialEmail = customOauth2User.getEmail();
 		Member findmember = memberRepository.findBySocialEmail(socialEmail)
 			.orElseThrow(() -> new NotFoundException(MemberErrorCode.NOT_FOUND_MEMBER));
 
+		log.error("findmember = ", findmember.toString());
+
 		String token = tokenProvider.generateAccessToken(findmember, customOauth2User, new Date());
 		tokenProvider.generateRefreshToken(findmember, customOauth2User, new Date());
 
+		log.error("token = ", token);
 		response.addCookie(cookieUtil.createCookie(token));
+		log.error("response = ", response.getHeader("Set-Cookie"));
 
 		if (isRoleGuest(findmember.getRole())) {
 			response.sendRedirect(REDIRECTION_SIGNUP);