--- title: "SQL Injection Defense | Microsoft Docs" author: JoeStagner description: "A SQL Injection vulnerability in your application can ruin your whole day. In this video, Microsoft’s Joe Stagner explains how SQL Injection attacks can happ..." ms.author: aspnetcontent manager: wpickett ms.date: 10/29/2009 ms.topic: article ms.assetid: b9fb1e01-06d9-43d9-9e8f-5fa1e4c6a211 ms.technology: dotnet-webforms ms.prod: .net-framework msc.legacyurl: /web-forms/videos/authentication/sql-injection-defense msc.type: video --- SQL Injection Defense ==================== by [Joe Stagner](https://github.com/JoeStagner) A SQL Injection vulnerability in your application can ruin your whole day. In this video, Microsoft's Joe Stagner explains how SQL Injection attacks can happen, what a bad guy can do with them, and how to protect your ASP.NET application from SQL Injection vulnerabilities. [▶ Watch video (25 minutes)](https://channel9.msdn.com/Blogs/ASP-NET-Site-Videos/sql-injection-defense) >[!div class="step-by-step"] [Previous](creating-inactive-users.md)