ASP.NET Core and .NET Security Articles, Tutorials & News
ASP.NET Core and .NET Security articles, tutorials, and news from the DotNetNews archive.
423 articles Updated Page 7 of 17
ASP.NET Core and .NET Security articles, tutorials, and news from the DotNetNews archive.
ASP.NET Core and .NET Security articles
Page 7 of 17
Newest first
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ASP.NET Development Services: Building Secure, Scalable, and High-Performance Web Applications
medium.com Issue #359
In today’s rapidly evolving digital landscape, businesses require web applications that are not only visually appealing but also secure…
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Understanding and Managing Mark of the Web in .NET
meziantou.net Issue #359
What is Mark of the Web? Mark of the Web (MOTW) is a Windows security feature that protects users from potentially unsafe files downloaded from the internet. When you download a file, Windows automati...
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Authentication in .NET — Part 12: Session & Cookie Security Hardening (Final Part)
dilankam.medium.com Issue #355
In the previous parts of this series, we explored authentication flows, identity providers, JWTs, multi-tenancy, MFA, and API security…
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Authentication in .NET — A Complete 12-Part Series (Overview & Guide)
dilankam.medium.com Issue #354
Over the past weeks, I’ve been writing a 12-part series on Authentication in .NET, aimed at software engineers and architects who want…
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JWT Is NOT Authentication
rahulsahay19.medium.com Issue #353
And If You Think It Is, Your System Is Lying to You
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Stop writing all validation logic inside your .NET Controllers
medium.com Issue #352
Your controller should be a traffic cop not a security guard. Continue reading on Readers Club »
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Work item linking for Advanced Security alerts now available
devblogs.microsoft.com Issue #352
Security vulnerabilities don't fix themselves. Someone needs to track them, prioritize them, and actually ship the fix. If you've ever tried to manage security alerts alongside your regular sprint wor...
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We Let Cursor Write Our .NET Code. Then “Stupid Bugs” Exploded — Here’s the Fix
medium.com Issue #351
Last month we did what everyone is doing in 2025:
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Securing Your API in .NET 9: A Complete Developer’s Guide
medium.com Issue #351
Building secure APIs has never been more critical in today’s interconnected world.
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Token Authentication In ASP.NET Core 9 With JWT | Clean Architecture (.NET 9 & .NET 10)
medium.com Issue #350
🔥 Part 1 — Foundations: Architecture, JWT Theory, and Clean Project Setup
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.NET 10 Networking Improvements
devblogs.microsoft.com Issue #349
Introducing new networking features in .NET 10 including HTTP space, WebSockets, security and more! The post .NET 10 Networking Improvements appeared first on .NET Blog.
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How to Detect Spam from Text Input in C# .NET Core
cloudmersive.medium.com Issue #348
Detecting and blocking spam inputs in our application starts with accurately classifying what spam is.
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Azure networking updates on security, reliability, and high availability
azure.microsoft.com Issue #348
The cloud landscape is evolving at an unprecedented pace, driven by the exponential growth of AI workloads. The post Azure networking updates on security, reliability, and high availability appeared ...
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Building Reliable Webhooks in ASP.NET Core
malshikay.medium.com Issue #347
A practical guide to request validation, retry handling, and idempotency with real-world examples
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Why Azure Key Vault is Essential for .NET Security
medium.com Issue #347
This is not a trifle in the current software architecture in which we store our application secrets — database passwords, API keys, and…
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How to Save Your .NET 8 Application from Silent Process Killers
itnext.io Issue #347
Learn which exceptions bypass your try/catch entirely — and the right architectural patterns to survive them. Continue reading on ITNEXT »
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Taming the Three-Headed Dog: Kerberos Authentication with .NET
dotnetfullstackdev.medium.com Issue #346
From Tickets to C# Code — Might look a like (not) SSO
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Implement Aggressive Control Flow in .NET
medium.com Issue #346
There are provide examples of implementing aggressive control flow obfuscation using Skater .NET Obfuscator. Skater offers several control…
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How do I check whether the user has permission to create files in a directory?
devblogs.microsoft.com Issue #344
A customer wanted to accept a directory entered by the user and verify that the user has permission to create files in that folder. The directory itself might not even be on a local hard drive; it cou...
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Cross-Platform Age Verification in .NET MAUI Applications
devblogs.microsoft.com Issue #344
Learn how to implement age verification in your .NET MAUI apps with our new cross-platform sample supporting Google Play Age Signals, Apple Declared Age Range, and Windows Age Consent APIs. The post ...
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Let’s Talk About Null in .NET
medium.com Issue #344
Every few months, an article makes the rounds telling developers to “stop using null” or that null checks are a “code smell” that…
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Using Azure Key Vault to Protect Secrets in .NET Apps
malshikay.medium.com Issue #343
Storing secrets like database passwords, JWT keys, API tokens, or connection strings inside your application is risky. If someone gets…
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How To Implement API Key Authentication in ASP.NET
medium.com Issue #343
Part 1 — Fundamentals, Security Concepts, API Key Design & Full Minimal API Setup Continue reading on AWS in Plain English »
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C# 14, testing, and performance wins
DotNetNews Issue #335
Covers C# 14, xUnit parameterized tests, EF Core projections, Azure SQL vector indexing, and security and tooling updates for .NET teams.
