diff --git a/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.html b/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.html
index d661507a..ba2d664c 100644
--- a/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.html
+++ b/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.html
@@ -2,6 +2,8 @@
   <div class="login-wrapper" fxLayout="column" fxLayoutAlign="center center">
     <ucap-account-login
       [companyList]="companyList$ | async"
+      [loginBtnEnable]="loginBtnEnable"
+      [loginBtnText]="loginBtnText"
       (login)="onLogin($event)"
     >
     </ucap-account-login>
diff --git a/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.ts b/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.ts
index 832e8340..bad075ab 100644
--- a/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/pages/account/components/login.page.component.ts
@@ -1,4 +1,4 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, OnInit, OnDestroy } from '@angular/core';
 
 import { Store, select } from '@ngrx/store';
 
@@ -7,20 +7,45 @@ import { Company } from '@ucap-webmessenger/api-external';
 import * as AppStore from '@app/store';
 import * as AuthenticationStore from '@app/store/account/authentication';
 import * as CompanyStore from '@app/store/setting/company';
-import { Observable } from 'rxjs';
+import { Observable, Subscription } from 'rxjs';
 import { Router } from '@angular/router';
+import { tap, map } from 'rxjs/operators';
+import {
+  DialogService,
+  AlertDialogComponent,
+  AlertDialogData,
+  AlertDialogResult
+} from '@ucap-webmessenger/ui';
+import { StringUtil } from '@ucap-webmessenger/core';
 
 @Component({
   selector: 'app-page-account-login',
   templateUrl: './login.page.component.html',
   styleUrls: ['./login.page.component.scss']
 })
-export class LoginPageComponent implements OnInit {
+export class LoginPageComponent implements OnInit, OnDestroy {
   companyList$: Observable<Company[]>;
 
-  constructor(private store: Store<any>, private router: Router) {}
+  loginFailureCount: Subscription;
+
+  defatulLoginBtnText: string;
+  loginBtnText: string;
+  loginBtnEnable: boolean;
+
+  timeChecker: any;
+  defatulWaitingTime: number;
+  waitingTime: number;
+
+  constructor(
+    private store: Store<any>,
+    private router: Router,
+    private dialogService: DialogService
+  ) {}
 
   ngOnInit(): void {
+    this.defatulLoginBtnText = 'LOGIN';
+    this.defatulWaitingTime = 5 * 60; // sec
+
     this.store.dispatch(
       CompanyStore.companyList({
         companyGroupCode: 'LG'
@@ -30,6 +55,80 @@ export class LoginPageComponent implements OnInit {
     this.companyList$ = this.store.pipe(
       select(AppStore.SettingSelector.CompanySelector.companyList)
     );
+
+    this.loginFailureCount = this.store
+      .pipe(
+        select(AppStore.AccountSelector.AuthenticationSelector.loginFailCount),
+        map(count => {
+          if (count > 0) {
+            if (count < 5) {
+              this.dialogService.open<
+                AlertDialogComponent,
+                AlertDialogData,
+                AlertDialogResult
+              >(AlertDialogComponent, {
+                width: '360px',
+                data: {
+                  title: 'Alert',
+                  html: `아이디 또는 패스워드가<br/>일치하지 않습니다.`
+                }
+              });
+            }
+
+            if (count === 5) {
+              this.dialogService.open<
+                AlertDialogComponent,
+                AlertDialogData,
+                AlertDialogResult
+              >(AlertDialogComponent, {
+                width: '360px',
+                data: {
+                  title: 'Alert',
+                  html: `비밀번호 오류 횟수 초과입니다.<br/>비밀번호를 확인하신 후<br/>잠시 후 다시 시작해 주세요.`
+                }
+              });
+
+              this.timeChecker = setInterval(() => this.getCheckTime(), 1000);
+            }
+            return;
+          } else {
+            if (!!this.timeChecker) {
+              clearInterval(this.timeChecker);
+            }
+            this.waitingTime = this.defatulWaitingTime;
+            this.loginBtnText = this.defatulLoginBtnText;
+            this.loginBtnEnable = true;
+          }
+        })
+      )
+      .subscribe();
+  }
+
+  ngOnDestroy(): void {
+    if (!!this.loginFailureCount) {
+      this.loginFailureCount.unsubscribe();
+    }
+  }
+
+  getCheckTime() {
+    if (this.waitingTime <= 0) {
+      // reset.
+      if (!!this.timeChecker) {
+        clearInterval(this.timeChecker);
+      }
+      this.waitingTime = this.defatulWaitingTime;
+      this.loginBtnText = this.defatulLoginBtnText;
+      this.loginBtnEnable = true;
+    } else {
+      // wait.
+      this.waitingTime = this.waitingTime - 1;
+
+      this.loginBtnText = `${StringUtil.zeroFill(
+        Math.floor(this.waitingTime / 60),
+        2
+      )}:${StringUtil.zeroFill(this.waitingTime % 60, 2)}`;
+      this.loginBtnEnable = false;
+    }
   }
 
   onLogin(value: {
diff --git a/projects/ucap-webmessenger-app/src/app/store/account/authentication/actions.ts b/projects/ucap-webmessenger-app/src/app/store/account/authentication/actions.ts
index 4ad59d61..b7b9849c 100644
--- a/projects/ucap-webmessenger-app/src/app/store/account/authentication/actions.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/account/authentication/actions.ts
@@ -6,7 +6,7 @@ import { LoginResponse } from '@ucap-webmessenger/protocol-authentication';
 import { LoginInfo } from '@app/types';
 import {
   UserPasswordSetRequest,
-  UserPasswordSetResponse,
+  UserPasswordSetResponse
 } from '@ucap-webmessenger/protocol-service';
 
 export const webLogin = createAction(
@@ -43,6 +43,15 @@ export const loginFailure = createAction(
   props<{ error: any }>()
 );
 
+export const increaseLoginFailCount = createAction(
+  '[Account::Authentication] Increase Login Failure Count',
+  props()
+);
+export const initialLoginFailCount = createAction(
+  '[Account::Authentication] Initialize Login Failure Count',
+  props()
+);
+
 export const loginRedirect = createAction(
   '[Account::Authentication] Login Redirect'
 );
diff --git a/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts b/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
index d33291f4..331398e1 100644
--- a/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
@@ -9,14 +9,14 @@ import { Actions, ofType, createEffect } from '@ngrx/effects';
 import {
   PiService,
   Login2Response,
-  UserTermsActionResponse,
+  UserTermsActionResponse
 } from '@ucap-webmessenger/pi';
 import { NativeService, UCAP_NATIVE_SERVICE } from '@ucap-webmessenger/native';
 import {
   DialogService,
   ConfirmDialogComponent,
   ConfirmDialogData,
-  ConfirmDialogResult,
+  ConfirmDialogResult
 } from '@ucap-webmessenger/ui';
 
 import {
@@ -35,12 +35,14 @@ import {
   changePassword,
   changePasswordFailure,
   changePasswordSuccess,
+  increaseLoginFailCount,
+  initialLoginFailCount
 } from './actions';
 import {
   LoginInfo,
   KEY_LOGIN_INFO,
   EnvironmentsInfo,
-  KEY_ENVIRONMENTS_INFO,
+  KEY_ENVIRONMENTS_INFO
 } from '@app/types';
 import { AppAuthenticationService } from '@app/services/authentication.service';
 import { NGXLogger } from 'ngx-logger';
@@ -48,7 +50,7 @@ import { Store } from '@ngrx/store';
 import { SessionStorageService } from '@ucap-webmessenger/web-storage';
 import {
   ServiceProtocolService,
-  UserPasswordSetResponse,
+  UserPasswordSetResponse
 } from '@ucap-webmessenger/protocol-service';
 
 @Injectable()
@@ -62,17 +64,19 @@ export class Effects {
           .login2({
             loginId: params.loginInfo.loginId,
             loginPw: params.loginInfo.loginPw,
-            companyCode: params.loginInfo.companyCode,
+            companyCode: params.loginInfo.companyCode
           })
           .pipe(
             map((res: Login2Response) => {
               if ('success' !== res.status.toLowerCase()) {
+                this.store.dispatch(increaseLoginFailCount({}));
                 return webLoginFailure({ error: 'Failed' });
               } else {
+                this.store.dispatch(initialLoginFailCount({}));
                 return webLoginSuccess({
                   loginInfo: params.loginInfo,
                   rememberMe: params.rememberMe,
-                  login2Response: res,
+                  login2Response: res
                 });
               }
             }),
@@ -147,8 +151,8 @@ export class Effects {
           width: '220px',
           data: {
             title: 'Logout',
-            message: 'Logout ?',
-          },
+            message: 'Logout ?'
+          }
         });
 
         return result.choice;
@@ -177,7 +181,7 @@ export class Effects {
               token: loginRes.tokenString,
               deviceType: environmentsInfo.deviceType,
               localeCode: loginInfo.localeCode,
-              textOnly: 'true',
+              textOnly: 'true'
             });
 
             const result = await this.dialogService.open<
@@ -189,9 +193,9 @@ export class Effects {
               height: '500px',
               disableClose: true,
               data: {
-                title: '개인정보 동의',
+                title: '개인정보 동의'
                 // html: `<iframe id="ifm_privacy" src="${privacyTotalUrl}" style="width: 100%;height: 300px;" />`
-              },
+              }
             });
 
             if (result.choice) {
@@ -213,8 +217,8 @@ export class Effects {
               disableClose: true,
               data: {
                 title: '패스워드 만료',
-                message: '',
-              },
+                message: ''
+              }
             });
 
             if (result.choice) {
@@ -241,7 +245,7 @@ export class Effects {
         return {
           loginInfo,
           environmentsInfo,
-          loginResponse: action.loginRes,
+          loginResponse: action.loginRes
         };
       }),
       exhaustMap(params =>
@@ -249,7 +253,7 @@ export class Effects {
           .userTermsAction({
             userSeq: params.loginResponse.userSeq,
             token: params.loginResponse.tokenString,
-            deviceType: params.environmentsInfo.deviceType,
+            deviceType: params.environmentsInfo.deviceType
           })
           .pipe(
             map((res: UserTermsActionResponse) => {
@@ -273,7 +277,7 @@ export class Effects {
         this.serviceProtocolService.userPasswordSet(req).pipe(
           map((res: UserPasswordSetResponse) => {
             return changePasswordSuccess({
-              res,
+              res
             });
           }),
           catchError(error => of(changePasswordFailure({ error })))
diff --git a/projects/ucap-webmessenger-app/src/app/store/account/authentication/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/account/authentication/reducers.ts
index 77e08802..1f91456d 100644
--- a/projects/ucap-webmessenger-app/src/app/store/account/authentication/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/account/authentication/reducers.ts
@@ -1,13 +1,30 @@
 import { Action, combineReducers, createReducer, on } from '@ngrx/store';
 import { State, initialState } from './state';
-import { loginSuccess } from './actions';
+import {
+  loginSuccess,
+  increaseLoginFailCount,
+  initialLoginFailCount
+} from './actions';
 
 export const reducer = createReducer(
   initialState,
   on(loginSuccess, (state, action) => {
     return {
       ...state,
-      loginRes: action.loginRes,
+      loginRes: action.loginRes
+    };
+  }),
+
+  on(increaseLoginFailCount, (state, action) => {
+    return {
+      ...state,
+      loginFailCount: state.loginFailCount + 1
+    };
+  }),
+  on(initialLoginFailCount, (state, action) => {
+    return {
+      ...state,
+      loginFailCount: 0
     };
   })
 );
diff --git a/projects/ucap-webmessenger-app/src/app/store/account/authentication/state.ts b/projects/ucap-webmessenger-app/src/app/store/account/authentication/state.ts
index 2c34d04b..005cd098 100644
--- a/projects/ucap-webmessenger-app/src/app/store/account/authentication/state.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/account/authentication/state.ts
@@ -4,14 +4,20 @@ import { LoginResponse } from '@ucap-webmessenger/protocol-authentication';
 // tslint:disable-next-line: no-empty-interface
 export interface State {
   loginRes: LoginResponse | null;
+  loginFailCount: number;
 }
 
 export const initialState: State = {
   loginRes: null,
+  loginFailCount: 0
 };
 
 export function selectors<S>(selector: Selector<any, State>) {
   return {
     loginRes: createSelector(selector, (state: State) => state.loginRes),
+    loginFailCount: createSelector(
+      selector,
+      (state: State) => state.loginFailCount
+    )
   };
 }
diff --git a/projects/ucap-webmessenger-core/src/lib/utils/string.util.ts b/projects/ucap-webmessenger-core/src/lib/utils/string.util.ts
index 162888bc..ffd83d2d 100644
--- a/projects/ucap-webmessenger-core/src/lib/utils/string.util.ts
+++ b/projects/ucap-webmessenger-core/src/lib/utils/string.util.ts
@@ -1 +1,18 @@
-export class StringUtil {}
+export class StringUtil {
+  /**
+   * prefix zero fill
+   * @param str target string
+   * @param len fill in length
+   */
+  public static zeroFill(str: any, len: number): string {
+    if (typeof str === 'string') {
+      let fillin = '';
+      for (let i = 0; i < len - str.length; i++) {
+        fillin += '0';
+      }
+      return fillin + str;
+    } else if (typeof str === 'number') {
+      return StringUtil.zeroFill(str.toString(), len);
+    }
+  }
+}
diff --git a/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.html b/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.html
index 0625d156..e7404854 100644
--- a/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.html
+++ b/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.html
@@ -2,7 +2,7 @@
   <div class="mat-title">LOGIN TO YOUR ACCOUNT</div>
 
   <form name="loginForm" [formGroup]="loginForm" novalidate>
-    <mat-form-field >
+    <mat-form-field>
       <mat-label>Company</mat-label>
       <mat-select formControlName="companyCode" required>
         <mat-option
@@ -27,7 +27,7 @@
       </mat-error>
     </mat-form-field>
 
-    <mat-form-field >
+    <mat-form-field>
       <mat-label>Password</mat-label>
       <input matInput type="password" formControlName="loginPw" #loginPw />
       <mat-error>
@@ -35,8 +35,17 @@
       </mat-error>
     </mat-form-field>
 
-    <div class="remember-forgot-password" fxLayout="row" fxLayout.xs="column" fxLayoutAlign="space-between center">
-      <mat-checkbox class="remember-me" formControlName="remember" aria-label="Remember Me">
+    <div
+      class="remember-forgot-password"
+      fxLayout="row"
+      fxLayout.xs="column"
+      fxLayoutAlign="space-between center"
+    >
+      <mat-checkbox
+        class="remember-me"
+        formControlName="remember"
+        aria-label="Remember Me"
+      >
         Remember Me
       </mat-checkbox>
 
@@ -49,10 +58,10 @@
       mat-raised-button
       class="submit-button bg-accent-dark"
       aria-label="LOG IN"
-      [disabled]="loginForm.invalid"
+      [disabled]="loginForm.invalid || !loginBtnEnable"
       (click)="onClickLogin()"
     >
-      LOGIN
+      {{ loginBtnText }}
     </button>
   </form>
 
diff --git a/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.ts b/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.ts
index 02a1143c..8d5a67d5 100644
--- a/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.ts
+++ b/projects/ucap-webmessenger-ui-account/src/lib/components/login.component.ts
@@ -20,6 +20,10 @@ import { LoginInfo, KEY_LOGIN_INFO } from '@app/types';
 export class LoginComponent implements OnInit {
   @Input()
   companyList?: Company[];
+  @Input()
+  loginBtnText?: string;
+  @Input()
+  loginBtnEnable: boolean;
 
   @Output()
   login = new EventEmitter<{
@@ -57,6 +61,10 @@ export class LoginComponent implements OnInit {
       loginPw: ['', Validators.required],
       remember: [remember]
     });
+
+    if (!this.loginBtnText || this.loginBtnText.trim().length === 0) {
+      this.loginBtnText = 'LOGIN';
+    }
   }
 
   onClickLogin() {