---
title: "News and Announcements"
description: "News from my business: new workshops, conference talks and milestones. My technical blog posts on .NET, identity and security are on nestenius.se."
url: https://tn-data.se/blog/
type: hub
lang: en
site: https://tn-data.se/
---

# News and Announcements

> See my latest news and company developments.

## News and Announcements

**Looking for my blogs for developers?** For my latest research and discoveries, check out my [**personal blog**](https://nestenius.se/).

- **[My Two Dometrain Courses: Authentication in .NET and OpenID Connect](https://tn-data.se/my-dometrain-courses-authentication-and-openid-connect/)**
  October 23, 2026
  Two recorded courses: authentication and authorization in .NET, and OpenID Connect at the protocol level.
- **[Speaking at NDC Copenhagen 2025](https://tn-data.se/tn-data-at-ndc-copenhagen-2025/)**
  May 27, 2025
  In September 2025 I gave my first talk at NDC Copenhagen, on schemes, ClaimsPrincipal and cookies.
- **[Nominated for Trainer of the Year 2025](https://tn-data.se/nominated-for-trainer-of-the-year-2025/)**
  May 27, 2025
  The nomination at Developers Day made me look back at how much of my career has been about sharing knowledge.
- **[Speaking at Swetugg 2025](https://tn-data.se/i-will-be-speaking-at-swetugg-2025/)**
  January 12, 2025
  My Swetugg talk in Stockholm on common authentication mistakes in ASP.NET Core and how to avoid them.
- **[I Have Been Awarded Microsoft .NET MVP](https://tn-data.se/mvp-announcement/)**
  January 12, 2025
  In January 2025 I was awarded Microsoft .NET MVP.
- **[Speaking at the Øredev conference](https://tn-data.se/speaking-at-the-oredev-conference/)**
  November 9, 2024
  In Malmö I went through schemes, handlers, ClaimsPrincipal and claims, with slides and code.
- **[I’m Now Azure Developer Certified (AZ-204)](https://tn-data.se/we-are-now-azure-development-certified/)**
  August 26, 2024
  How I prepared for the AZ-204 exam, and how the studies turned into my own Azure course.
- **[Announcing .NET Skåne: A New Meetup for .NET Developers in Skåne](https://tn-data.se/announcing-net-skane-a-new-meetup-for-net-developers-in-skane/)**
  April 4, 2024
  I co-founded a meetup where .NET and C# developers in Skåne share knowledge and meet.
- **[Demystifying Authentication in ASP.NET Core](https://tn-data.se/demystifying-authentication-in-asp-net-core/)**
  February 12, 2024
  I gave this talk at the Copenhagen .NET User Group, and I can give it at your company too, on-site or remote.
- **[New C# training classes](https://tn-data.se/new-c-training-classes/)**
  February 2, 2024
  Courses from C# Introduction to C# Expert, plus asynchronous programming and test-driven development.
- **[New Training Class: Introduction to Containers and Kubernetes](https://tn-data.se/new-training-class-introduction-to-containers-and-kubernetes/)**
  June 5, 2023
  One day of Docker and the Kubernetes basics, with hands-on exercises.
- **[Announcing a new “Introduction to OpenID Connect and OAuth” course](https://tn-data.se/announcing-a-new-introduction-to-openid-connect-and-oauth-course/)**
  December 15, 2022
  A one-day course on the fundamentals of token-based authentication.
- **[Announcing a new “Introduction to Git and GitHub” course](https://tn-data.se/announcing-a-new-introduction-to-git-and-github-course/)**
  September 29, 2022
  How Git works, from commits and branches to merging and pull requests.