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ASP.NET Core Identity - User Security Essentials (Udemy.com)

We take a deep dive into Identity for ASP.NET Core (.NET 5 and up) and authentication and authorization best practices

Created by: Trevoir Williams

Last updated March 2026

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What you will learn

  • ASP .NET Core Identity
  • Implementing Two-Factor Authentication
  • User, Claims and Role Management and Authorization
  • Security Policy Creation and Enforcement
  • Adding Email Confirmation to Account Creation and Access
  • Identity Scaffolding and Custom Extensions
  • How To facilitate third-party logins engines (Google, Facebook, etc)
  • How To Store User Secrets
  • How to manage user authentication and registration

How it compares

Against the other 116 rated Udemy courses in ASP.NET on CourseDuck:

  • Rating4.5 out of 5higher than 61% of them
  • Reviews150#87 of 117 by number of reviews
  • Length5 hoursshorter than 67% of them
  • Last updatedMarch 2026more recently than 86% of them

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Course Description

Overview

In this course, you will learn the basics of modern authentication using the ASP.NET Core Identity Library and learn to extend the functionality relative to our specific business needs. While perfect security is arguably impossible to achieve, we will explore various techniques that go a long way in ensuring security and relative ease of use simultaneously. We will look at implementing security in a practical ASP.NET Core application and how we can implement role, claim, and custom policy-based authorization.

Why ASP.NET Identity Core

Authorization, Authentication, and User Management are mainstay features in real-world applications. Identity Core is the flagship library packaged with ASP.NET Core projects to help us get the most security possible. Getting authentication and authorization done right on your website can help keep your users and their data safe from attacks. Added features such as Two and Multi-Factor Authentication are relatively easy to plug in, and this library can easily be extended to implement unique business rules to surround how users are treated.

Everything in this course is .NET 6 / .NET 7 compatible.

Build A Strong Foundation in ASP.NET Core Security:

  • Learn how to add Cookie Authentication manually to an ASP.NET Core application

  • How to properly implement User Roles, Claims, and Policies

  • Learn how to use, build and manage User Claims

  • Learn to implement user authentication and registration processes properly

  • Learn password policies and recovery

  • Learn to setup Emailing features for secure Account Confirmation, Forgot Password, and other processes

  • Learn to add authorization and user restrictions

  • Learn to Add Two and Multi-factor Authentication

  • Learn Modern Authentication Methods (Social logins, OAuth, etc.)

Even though the fundamentals of the security principles will be demonstrated with a Razor Pages application, all techniques and considerations can be taken in any ASP.NET Core application type, including MVC and Blazor. 

It has content for developers at all levels, as there is always time/early to start thinking about the best security practices for your web application.

Content and Overview

To take this course, you must have some knowledge of .NET Core development and C#.

This course has just over 5 hours of premium content, smartly broken up to highlight related activities based on each module in the application being built. We will also look at troubleshooting and debugging errors as we go along, implementing best practices, writing efficient logic, and understanding why developers do things the way they do. Your knowledge will grow, step by step, throughout the course, and you will be challenged to be the best you can be.

We don't always do things the perfect way the first time; that is not the reality of writing code. We make mistakes and point them out and fix them around them. By doing this, we develop proficiency in using debugging tools and techniques. By the time you have finished the course, you will have moved around in Visual Studio and examined logic and syntax errors so much that it will be second nature for you when working in the .NET environment. This will put your newly learned skills into practical use and impress your boss and coworkers.

The course is complete with working files hosted on GitHub, including some files to make it easier for you to replicate the demonstrated code. You will be able to work alongside the author as you work through each lecture and will receive a verifiable certificate of completion upon finishing the course.

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Instructor Details

Trevoir Williams

Trevoir Williams is a software and systems engineer, author, instructor, and technical educator specializing in .NET, Azure, SQL Server, microservices, DevOps, secure coding, and AI-powered application development. He holds a master’s degree in Computer Science with a focus on Software Development and has earned multiple Microsoft Azure certifications.

As an author and instructor, Trevoir focuses on practical, production-ready software development. He is the author of Microservices Design Patterns in .NET and Effective .NET Memory Management, and a contributor to the Azure Integration Guide for Business. His work helps developers understand modern architecture, data access, messaging, observability, security, cloud deployment, performance, and AI integration with real implementation context.

Trevoir has taught more than 500,000 learners through online courses on ASP.NET Core, Entity Framework Core, SQL Server, Microsoft Azure, microservices, DevOps, secure application development, and generative AI. He also teaches thousands more through his YouTube tutorials, articles, and practical technical content.

His teaching philosophy is simple: explain the why, build the how, and help learners develop the confidence to apply both in real systems.

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Reviews

4.5

150 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Tomislav Peran on 6/13/2026

Course is a great addition to Trevoir's MVC course. Instructor is chill and very active in helping students. I recommend the course to anybody wanting to learn more in depth about Identity.

By Marcus Dambacher on 10/4/2025

Kurs ist sehr gut aufbereitet. Trevoir Williams ist einer meiner Lieblingsdozenten. Er erklärt gut und zeigt auch vorbildlich, wie mit Fehlermeldungen umgegangen werden soll. Leider ist die Code-Basis dieses Kurses mit .NET 5 nicht mehr "up to date". Es fehlen auch wichtige Hinweise z.B. zu "Ignore(RelationalEventId.PendingModelChangesWarning)" beim Seeding von DateTime-Werten. Wenn eine Aktualisierung erfolgt, wünsche ich mir, dass die Integration von Passkeys mit .NET 10 ebenfalls integriert wird.

By ElHadji Ousmane Diallo on 12/25/2024

All security aspects in Microsoft Identity platform thoroughly discussed and enlightened. Integrating third-party identity providers is also introduced. As usual explanations are clear. Thanks a lot Trevor.

By Paweł Drozdowski on 9/11/2024

A good course about .NET Identity details. Even though a bit more chaotic compared to .NET Wep API one made by the same tutor.

By Remco van der Molen on 2/16/2023

Practical and great course to expand your knowledge into Indentity Core

By Marika Stavropoulou on 12/24/2022

Very Good Instructor generally. I follow many of his courses. Most if not all, very well explained and he develop his skills as an Instructor with every new course. Also create content/courses that are in major demand for less experienced developers (like myself) and continuously evolve that content, either it is older/existing or new. And another thing I noticed and I personally like, is that he offers many valuable videos, not for sponsor reasons but complete videos or courses in various topics in YouTube for people that either want to start learning or to see if the instructor style matches his preferences and proceed with purchasing with a paid course and so on. My opinion, a very good to excellence course, at least for a beginner/intermediate developer that want to emphasize to a Very Sensitive area as Web Security with the .NET Core platform and Identity using C#.

By Hans Achterhof on 11/3/2022

De code is wat wankel. Ik moest vaak iets aanpassen omdat het niet gelijk werkte. Versie van packages was veel een probleem. Het zou fijn zijn als deze cursus helemaal in .Net 6 zou worden gegeven. .Net 5 wordt niet meer ondersteund. Het basis idee was wel verhelderend en duidelijk. Ik heb wel weer veel geleerd.

By Randy F on 1/29/2022

I enjoyed the journey Trevoir provided in de-mystifying the out-of-the-box Authentication and Authorization of ASP.Net Core 5. The structure and layout of the course were well thought out. The initial set-up part of the projects went very well. Some of the glitches I had when scaffolding Identity pages code were covered well later on when Trevoir walked us through how to resolve them. Overall - job well done!

By Alfred Amos on 1/1/2022

This is a course excellently presented by Trevoir. The course is succint, well presented and straight to the point.

By George Athanasopoulos on 11/2/2021

Thank you Trevoir for this course. I have a job as a .Net developer to create a web application and I had a hard time to have a good and clear understanding of the identity na dhow to implement it on my application. You really helped me acknowledge so many things and explained so much code because before I was searching everywhere and did not find such clear and good examoples as you demonstrated. You help me so much with your courses. Thank you and God bless you for teaching so much information that can be very hard to understand sometimes!

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Overall Score : 90 / 100