diff --git a/dist/plugin_package.zip b/dist/plugin_package.zip
index 1b3f2de..fe3427f 100644
Binary files a/dist/plugin_package.zip and b/dist/plugin_package.zip differ
diff --git a/packages/backend/src/controller/nonceCheck.ts b/packages/backend/src/controller/nonceCheck.ts
index 383ca90..a27a4d6 100644
--- a/packages/backend/src/controller/nonceCheck.ts
+++ b/packages/backend/src/controller/nonceCheck.ts
@@ -1,4 +1,4 @@
-import type { Request } from "caido:utils";
+import type { Request, Response } from "caido:utils";
 import { TokenLeakCheck } from "./tokenLeakCheck";
 
 export class NonceCheckController{
@@ -6,8 +6,8 @@ export class NonceCheckController{
      * 응답이 OIDC(OpenID Connect) 플로우인지 확인하는 메서드
      */
     
-    public static isOidcFlow(req: Request): boolean {
-        if(TokenLeakCheck.extractIdToken(req)) {
+    public static isOidcFlow(req: Request, res:Response): boolean {
+        if(TokenLeakCheck.extractIdToken(req, res)) {
             return true;
         }
         return false;
@@ -15,10 +15,10 @@ export class NonceCheckController{
 
   
     public static isNonceCheckRequest(req: Request): boolean {
-        const id_token = decodeIdToken(req);
+        const id_token = TokenLeakCheck.decodeIdToken(req);
 
         // 1. nonce 파라미터가 포함된 요청인지 확인
-        if (id_token.includes("nonce=")) {
+        if (id_token && id_token.includes("nonce=")) {
             return true;
         }
 
@@ -26,8 +26,4 @@ export class NonceCheckController{
     }
 }
 
-function decodeIdToken(req: Request): string {
-    // Implement actual decoding logic here. For now, return an empty string or mock value.
-    return "";
-}
 
diff --git a/packages/backend/src/index.ts b/packages/backend/src/index.ts
index 0ad8c01..00fdd51 100644
--- a/packages/backend/src/index.ts
+++ b/packages/backend/src/index.ts
@@ -1,5 +1,5 @@
 import type { SDK, DefineAPI } from "caido:plugin";
-import type { Request } from "caido:utils";
+import type { Request, Response } from "caido:utils";
 import { ImplicitGrantController } from "./controller/implictGrant";
 import { AuthZCodeGrantController } from "./controller/authZCodeGrant";
 import { NonceCheckController } from "./controller/nonceCheck";
@@ -8,6 +8,7 @@ export type API = DefineAPI<{}>;
 
 const implicitGrantController = new ImplicitGrantController();
 const authZCodeGrantController = new AuthZCodeGrantController();
+const nonceCheckController = new NonceCheckController();
 
 // function matchSSORequest(req: Request): boolean {
 //   const raw = req.getRaw().toString();
@@ -28,7 +29,8 @@ const authZCodeGrantController = new AuthZCodeGrantController();
 // }
 
 export function init(sdk: SDK<API>) {
-  sdk.events.onInterceptRequest(async (sdk, req: Request) => {
+  // 요청 이벤트
+  sdk.events.onInterceptRequest(async (sdk, req) => {
     const result =
       authZCodeGrantController.testReq(req) ||
       implicitGrantController.testReq(req);
@@ -41,8 +43,12 @@ export function init(sdk: SDK<API>) {
         reporter: "",
       });
     }
+  });
 
-    if(NonceCheckController.isOidcFlow(req)) {
+  // 응답 이벤트
+  sdk.events.onInterceptResponse(async (sdk, req, res) => {
+
+    if (NonceCheckController.isOidcFlow(req, res)) {
       await sdk.findings.create({
         title: "OIDC Flow Detected",
         description: "The request appears to be part of an OIDC flow.",