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Learn how to prevent cross-site scripting (XSS) in ASP.NET Core with encoding, CSP, and sanitization. Complete guide with C# code examples — read now. Cross-site scripting (XSS) has appeared in every OWASP Top 10 list since the project began, and it remains one of the most commonly reported vulnerabilities in web applications today. If you build web apps with ASP.NET Core, the good news is that the framework gives you strong cross-site scripting prevention out of the box — but only if you understand where those protections apply and, more importantly, where they silently stop applying. This complete guide explains what XSS is, how attackers exploit it, and exactly how to prevent it in ASP.NET Core using output encoding, Content Security Policy, HTML sanitization, and secure cookie configuration. What Is Cross-Site Scripting (XSS)? Cross-site scripting is an injection attack where an attacker gets their own JavaScript to run in another user's browser, in the security con...

Learn SQL injection prevention in C# with parameterized queries, EF Core, and stored procedures. Secure your .NET database code today with proven examples. SQL injection remains one of the most dangerous and most common vulnerabilities in web applications today. If your C# application builds SQL queries by concatenating user input, it is almost certainly exploitable. In this guide on SQL injection prevention in C# , you will learn exactly how these attacks work, why they succeed, and how to secure your database queries completely using parameterized queries, Entity Framework Core, and stored procedures. Whether you are a beginner writing your first data-access layer or a senior engineer hardening a production system, this tutorial gives you practical, runnable examples you can apply immediately. What Is SQL Injection and Why It Still Matters in 2026 SQL injection (SQLi) is an attack where a malicious user inserts SQL code into an input field, tricking your application into execu...

Learn ransomware protection best practices for developers. Secure your C# apps and data with proven coding techniques and prevention strategies. Ransomware Protection for Developers — How to Secure Your Apps and Data Ransomware protection is no longer just a concern for IT administrators and security teams. As a developer, the code you write is either part of the solution or part of the attack surface. In 2026, ransomware attacks cost businesses over $30 billion globally, and a significant number of breaches exploited vulnerabilities in application code — insecure file uploads, unvalidated inputs, hardcoded credentials, and weak encryption. If you build software in C# or .NET, this guide will show you exactly how to harden your applications against ransomware threats with practical, runnable code examples. This article covers ransomware prevention from a developer's perspective: secure coding practices, data protection, file integrity monitoring, backup automation, and...

Learn DevSecOps best practices for C# and .NET. Build security into your CI/CD pipeline from day one with practical code examples and automation tools. What Is DevSecOps and Why Every C# Developer Needs It in 2026 DevSecOps is no longer optional. In 2026, every production breach post-mortem tells the same story: security was an afterthought bolted on at the end of the release cycle. DevSecOps flips that model — it embeds security checks, vulnerability scanning, and policy enforcement directly into your CI/CD pipeline so that insecure code never reaches production. If you ship C# or .NET applications, this guide will show you exactly how to build a secure CI/CD pipeline from day one, with runnable code examples you can drop into your projects today. The concept behind DevSecOps is simple: shift left . Move security testing as early as possible in the development lifecycle — into your IDE, your pull requests, your build scripts — rather than waiting for a penetration test ...

Learn encryption in C# with AES, RSA, and hashing. Complete developer guide with runnable code examples, best practices, and security pitfalls. Start coding securely today. Whether you're storing user passwords, protecting API keys, or transmitting sensitive data, encryption in C# is a skill every .NET developer needs in 2026. The good news? The .NET base class library ships with battle-tested cryptography primitives in the System.Security.Cryptography namespace, so you rarely need third-party packages. The bad news? It's surprisingly easy to use them incorrectly and ship insecure code that looks safe. This complete developer guide covers the three pillars of applied cryptography — AES encryption in C# (symmetric), RSA encryption in C# (asymmetric), and C# hashing (one-way) — with practical, runnable code examples. More importantly, we'll explain why each technique works the way it does, so you can make secure decisions instead of copy-pasting Stack Overflo...

Learn how to enforce HTTPS in ASP.NET Core with SSL, HSTS, and redirection. Secure your web app with this step-by-step C# tutorial. Start now! If you're building a web application, securing it with ASP.NET Core HTTPS is no longer optional — it's a baseline requirement. Browsers flag plain HTTP sites as "Not Secure," search engines penalize them, and attackers actively exploit unencrypted traffic on public networks. The good news? ASP.NET Core ships with built-in middleware to enforce SSL, redirect insecure requests, and harden your app with HSTS. In this tutorial you'll learn exactly how to enforce HTTPS in ASP.NET Core, why each setting matters, and the common pitfalls that trip up even experienced developers. Whether you're a beginner wondering how to enable SSL, an intermediate developer searching for best practices, or a senior engineer hardening a production deployment, this guide covers the full picture — from development certificates to product...