diff --git a/GWMS.User/Areas/Identity/Pages/Account/Manage/EnableAuthenticator.cshtml b/GWMS.User/Areas/Identity/Pages/Account/Manage/EnableAuthenticator.cshtml
index 6ea8510..5506f50 100644
--- a/GWMS.User/Areas/Identity/Pages/Account/Manage/EnableAuthenticator.cshtml
+++ b/GWMS.User/Areas/Identity/Pages/Account/Manage/EnableAuthenticator.cshtml
@@ -22,7 +22,7 @@
         </li>
         <li>
             <p>Scan the QR Code or enter this key <kbd>@Model.SharedKey</kbd> into your two factor authenticator app. Spaces and casing do not matter.</p>
-            <div class="alert alert-info">Learn how to <a href="https://go.microsoft.com/fwlink/?Linkid=852423">enable QR code generation</a>.</div>
+            @*<div class="alert alert-info">Learn how to <a href="https://go.microsoft.com/fwlink/?Linkid=852423">enable QR code generation</a>.</div>*@
             <div id="qrCode"></div>
             <div id="qrCodeData" data-url="@Html.Raw(@Model.AuthenticatorUri)"></div>
         </li>
@@ -50,4 +50,14 @@
 
 @section Scripts {
     <partial name="_ValidationScriptsPartial" />
-}
+
+    <script type="text/javascript" src="~/lib/qrcode.js"></script>
+    <script type="text/javascript">
+        new QRCode(document.getElementById("qrCode"),
+            {
+                text: "@Html.Raw(Model.AuthenticatorUri)",
+                width: 150,
+                height: 150
+            });
+    </script>
+}
\ No newline at end of file
diff --git a/GWMS.User/Areas/Identity/Pages/Account/Manage/TwoFactorAuthentication.cshtml b/GWMS.User/Areas/Identity/Pages/Account/Manage/TwoFactorAuthentication.cshtml
index 9e3c008..a8bb218 100644
--- a/GWMS.User/Areas/Identity/Pages/Account/Manage/TwoFactorAuthentication.cshtml
+++ b/GWMS.User/Areas/Identity/Pages/Account/Manage/TwoFactorAuthentication.cshtml
@@ -34,11 +34,11 @@
     if (Model.IsMachineRemembered)
     {
         <form method="post" style="display: inline-block">
-            <button type="submit" class="btn btn-default">Forget this browser</button>
+            <button type="submit" class="btn btn-warning">Forget this browser</button>
         </form>
     }
-    <a asp-page="./Disable2fa" class="btn btn-default">Disable 2FA</a>
-    <a asp-page="./GenerateRecoveryCodes" class="btn btn-default">Reset recovery codes</a>
+    <a asp-page="./Disable2fa" class="btn btn-danger">Disable 2FA</a>
+    <a asp-page="./GenerateRecoveryCodes" class="btn btn-warning">Reset recovery codes</a>
 }
 
 <h5>Authenticator app</h5>
diff --git a/GWMS.User/GWMS.User.csproj b/GWMS.User/GWMS.User.csproj
index 7743467..3cbdf25 100644
--- a/GWMS.User/GWMS.User.csproj
+++ b/GWMS.User/GWMS.User.csproj
@@ -33,4 +33,8 @@
     <ItemGroup>
         <ProjectReference Include="..\GWMS.Data\GWMS.Data.csproj" />
     </ItemGroup>
+
+    <ItemGroup>
+        <Folder Include="wwwroot\lib\" />
+    </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/GWMS.User/Pages/Counter.razor b/GWMS.User/Pages/Counter.razor
index c404ea4..235a1d2 100644
--- a/GWMS.User/Pages/Counter.razor
+++ b/GWMS.User/Pages/Counter.razor
@@ -9,6 +9,22 @@
 <p>Current count: @currentCount</p>
 
 <button class="btn btn-primary" @onclick="IncrementCount">Click me</button>
+
+<AuthorizeView>
+    <Authorized>
+        <div class="alert alert-success">
+            <h4>Hello, @context.User.Identity.Name!</h4>
+            <p>This content is only visible if user is authenticated.</p>
+        </div>
+    </Authorized>
+    <NotAuthorized>
+        <div class="alert alert-warning">
+            <h4>Utente anonimo</h4>
+            <p>Please signed in.</p>
+        </div>
+    </NotAuthorized>
+</AuthorizeView>
+
 <br />
 <button class="btn btn-danger" @onclick="SendTestEmail">Test Invio Email</button>
 
diff --git a/GWMS.User/Shared/NavMenu.razor b/GWMS.User/Shared/NavMenu.razor
index 5beca2b..ff6bc94 100644
--- a/GWMS.User/Shared/NavMenu.razor
+++ b/GWMS.User/Shared/NavMenu.razor
@@ -17,11 +17,22 @@
                 <span class="oi oi-plus" aria-hidden="true"></span> Counter
             </NavLink>
         </li>
-        <li class="nav-item px-3">
-            <NavLink class="nav-link" href="fetchdata">
-                <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data
-            </NavLink>
-        </li>
+        <AuthorizeView>
+            <Authorized>
+                <li class="nav-item px-3">
+                    <NavLink class="nav-link" href="fetchdata">
+                        <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data
+                    </NavLink>
+                </li>
+            </Authorized>
+            <NotAuthorized>
+                <li class="nav-item px-3">
+                    <div class="alert alert-warning">
+                        <p>Accesso riservato</p>
+                    </div>
+                </li>
+            </NotAuthorized>
+        </AuthorizeView>
     </ul>
 </div>
 
@@ -34,4 +45,4 @@
     {
         collapseNavMenu = !collapseNavMenu;
     }
-}
+}
\ No newline at end of file
diff --git a/GWMS.User/Startup.cs b/GWMS.User/Startup.cs
index 0133cbc..9dd1873 100644
--- a/GWMS.User/Startup.cs
+++ b/GWMS.User/Startup.cs
@@ -1,6 +1,7 @@
 using GWMS.Data;
 using GWMS.User.Areas.Identity;
 using GWMS.User.Data;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Authorization;
@@ -95,6 +96,9 @@ namespace GWMS.User
                 o.ExpireTimeSpan = TimeSpan.FromDays(30);
                 o.SlidingExpiration = true;
             });
+            // token di sicurezza dati a 3h
+            services.Configure<DataProtectionTokenProviderOptions>(o =>
+               o.TokenLifespan = TimeSpan.FromHours(3));
 
             // DB management
             services.AddDbContext<UserIdentityDbContext>(options =>
@@ -102,9 +106,19 @@ namespace GWMS.User
 
             // identity management
             services.AddDefaultIdentity<IdentityUser>(options => options.SignIn.RequireConfirmedAccount = true)
+                .AddRoles<IdentityRole>()
                 .AddEntityFrameworkStores<UserIdentityDbContext>();
 
             services.AddRazorPages();
+
+            // richeista esplicita autorizzazione
+            services.AddAuthorization(options =>
+            {
+                options.FallbackPolicy = new AuthorizationPolicyBuilder()
+                    .RequireAuthenticatedUser()
+                    .Build();
+            });
+
             services.AddServerSideBlazor();
             services.AddScoped<AuthenticationStateProvider, RevalidatingIdentityAuthenticationStateProvider<IdentityUser>>();
             services.AddDatabaseDeveloperPageExceptionFilter();