diff --git a/blotztask-api/Data/Seeding/BlotzContextSeed.cs b/blotztask-api/Data/Seeding/BlotzContextSeed.cs
index aabfbab..29e20ab 100644
--- a/blotztask-api/Data/Seeding/BlotzContextSeed.cs
+++ b/blotztask-api/Data/Seeding/BlotzContextSeed.cs
@@ -17,7 +17,7 @@ public static async Task SeedBlotzContextAsync(UserManager<User> userManager, Ro
         // Seed admin user
         var defaultUser = new User
         {
-            UserName = "blotztest1",
+            UserName = "blotztest1@gmail.com",
             Email = "blotztest1@gmail.com",
             EmailConfirmed = true,
         };
diff --git a/blotztask-api/Middleware/ErrorHandlerMiddleware.cs b/blotztask-api/Middleware/ErrorHandlerMiddleware.cs
new file mode 100644
index 0000000..0ff5f4c
--- /dev/null
+++ b/blotztask-api/Middleware/ErrorHandlerMiddleware.cs
@@ -0,0 +1,40 @@
+using BlotzTask.Models.ApiResponse;
+
+public class ErrorHandlingMiddleware
+{ 
+    private readonly RequestDelegate _next;
+
+    public ErrorHandlingMiddleware(RequestDelegate next)
+    {
+        _next = next;
+    }
+
+    public async Task InvokeAsync(HttpContext context)
+    {
+        try
+        {
+            await _next(context);
+        }
+    
+        catch (UnauthorizedAccessException ex)
+        {
+            var errorMessage = string.IsNullOrWhiteSpace(ex.Message) ? "Unauthorized access." : ex.Message;
+            
+            context.Response.StatusCode = StatusCodes.Status401Unauthorized;
+            await context.Response.WriteAsJsonAsync(new ApiResponse<object> 
+            { 
+                Success = false, 
+                Message = errorMessage 
+            });
+        }
+        
+        catch (Exception ex)
+        {
+            //TODO: Implement logging
+            Console.WriteLine($"Unhandled Exception: {ex}");
+
+            context.Response.StatusCode = StatusCodes.Status500InternalServerError;
+            await context.Response.WriteAsJsonAsync(new ApiResponse<object> { Success = false, Message = "An error occurred while processing your request." });
+        }
+    }
+}
diff --git a/blotztask-api/Models/ApiResponse/ApiResponse.cs b/blotztask-api/Models/ApiResponse/ApiResponse.cs
new file mode 100644
index 0000000..4bb541e
--- /dev/null
+++ b/blotztask-api/Models/ApiResponse/ApiResponse.cs
@@ -0,0 +1,8 @@
+namespace BlotzTask.Models.ApiResponse;
+
+public class ApiResponse<T>
+{
+    public bool Success { get; set; }
+    public string Message { get; set; } = string.Empty;
+    public T? Data { get; set; }
+}
diff --git a/blotztask-api/Program.cs b/blotztask-api/Program.cs
index 4138810..dfa2bf7 100644
--- a/blotztask-api/Program.cs
+++ b/blotztask-api/Program.cs
@@ -80,6 +80,7 @@
 builder.Services.AddFluentValidationAutoValidation();
 
 var app = builder.Build();
+app.UseMiddleware<ErrorHandlingMiddleware>();
 
 app.MapIdentityApi<User>();
 // Configure the HTTP request pipeline.