Secure Coding in C# and .NET — 93% OFF Coupon

Build secure .NET apps with OWASP, authentication, authorization, data protection, secrets, DevSecOps, and AI tools

★4.6 out of 5
594 students
Created by Trevoir Williams
English
Updated June 2026

Quick Facts — Secure Coding in C# and .NET Overview

Here's a quick overview of everything you need to know about Secure Coding in C# and .NET before you enroll:

•Course Name: Secure Coding in C# and .NET
•Platform: Udemy
•Instructor: Trevoir Williams
•Coupon Last Verified: June 17, 2026
•Level: All Levels
•Topic: Development
•Subtopic: Software Engineering
•Total Time: 8h of video content
•Language: English
•Access Type: Unlimited lifetime access + updates
•Certificate: Included upon completion from Udemy
•Main Skills: Apply secure coding principles to C# and .NET applications · Identify and fix common OWASP Top 10 vulnerabilities in ASP.NET Core apps · Secure APIs using authentication, authorization, JWT, roles, claims, and policies
•Requirements: Basic C# experience and the ability to run simple .NET applications · Familiarity with Visual Studio or Visual Studio Code
•Current Price: $9.99 (was $149.99). You save $140.00 with 93% discount.
•How to Apply: Click the coupon button to activate your discount automatically
💡
Tip:For best results, apply the coupon in a regular browser window rather than incognito/private mode.

Skills You'll Master in This Course

By the end of Secure Coding in C# and .NET, you'll have these practical skills:

✓Apply secure coding principles to C# and .NET applications .
✓Identify and fix common OWASP Top 10 vulnerabilities in ASP.NET Core apps .
✓Secure APIs using authentication, authorization, JWT, roles, claims, and policies .
✓Prevent SQL injection, XSS, command injection, insecure deserialization, and excessive data exposure .
✓Protect secrets, connection strings, API keys, and tokens in local and cloud environments .
✓Use encryption, hashing, TLS, and secure logging to protect sensitive data .
✓Review and improve AI-generated code from GitHub Copilot using secure coding practices .
✓Add dependency scanning, static analysis, and secure CI/CD checks to .NET workflows .
✓Apply DevSecOps practices using GitHub Actions, Azure DevOps, Docker, and secure configuration .
✓Build a practical security mindset for designing, coding, testing, and deploying .NET applications.

Prerequisites for This Course

Before enrolling in Secure Coding in C# and .NET, make sure you have:

•Basic C# experience and the ability to run simple .NET applications
•Familiarity with Visual Studio or Visual Studio Code
•Basic understanding of APIs, HTTP requests, and databases
•No prior cybersecurity experience required

About This Udemy Course

The following is the full official course description for Secure Coding in C# and .NET as published on Udemy by instructor Trevoir Williams:

Secure Coding in C# and .NET: Build Safer Applications with OWASP, ASP.NET Core Security, DevSecOps, and AI-Assisted Development

Modern developers cannot afford to treat security as an afterthought. Whether you are building ASP.NET Core APIs, web applications, microservices, or cloud-hosted .NET systems, you need to understand how vulnerabilities happen, how attackers exploit weak code, and how to prevent common security mistakes before they reach production.

In this hands-on course, you will learn how to write secure C# and .NET code using practical techniques based on real application security risks, OWASP guidance, and modern developer workflows. You will work through secure coding practices for authentication, authorization, input validation, data protection, secret management, dependency security, logging, CI/CD pipelines, and AI-assisted development with GitHub Copilot.

This course is designed for C# and .NET developers who want to go beyond making applications work. You will learn how to make them safer, more resilient, and better prepared for real-world security expectations.

What makes this course different?

Most application security courses are broad and language-agnostic. This course focuses on the Microsoft .NET ecosystem. You will see how secure coding concepts apply directly to C#, ASP.NET Core, Entity Framework Core, Identity, JWT, OAuth, OpenID Connect, Azure Key Vault, GitHub Actions, Azure DevOps, Docker, and GitHub Copilot.

You will also learn how AI-generated code can introduce security risks and how to use tools like GitHub Copilot more responsibly during development and review.

What you will learn

You will learn how to:
  • Apply secure coding principles in C# and .NET applications
  • Understand OWASP Top 10 risks from a .NET developer’s perspective
  • Secure ASP.NET Core APIs and web applications
  • Implement safer authentication and authorization flows
  • Protect applications from broken access control and privilege escalation
  • Validate and sanitize user input to reduce injection and XSS risks
  • Protect sensitive data using encryption, hashing, TLS, and secure storage
  • Manage secrets safely in local development, GitHub, Azure, and CI/CD workflows
  • Avoid common security mistakes in configuration and deployment
  • Use dependency scanning and static analysis to detect vulnerabilities
  • Review and harden AI-generated code from GitHub Copilot
  • Build security into the software development lifecycle
  • Secure authentication and authorization

Authentication and authorization are two of the most common sources of serious application security failures. In this course, you will examine how to protect login flows, tokens, claims, roles, policies, and access rules in ASP.NET Core applications.

You will explore .NET Identity, JWT, OAuth, OpenID Connect, MFA concepts, role-based authorization, claims-based authorization, and practical ways to reduce broken access control vulnerabilities.

Input validation, injection prevention, and safer APIs

You will learn how insecure input handling can lead to SQL injection, command injection, cross-site scripting, insecure deserialization, excessive data exposure, and unsafe business logic. You will use .NET validation tools, custom validators, allowlists, model validation, secure patterns, and practical coding techniques to reduce these risks.

Secret management and data protection

You will learn how to prevent the leakage of credentials, keys, tokens, and connection strings. You will examine safer approaches using local user secrets, environment variables, GitHub secrets, Azure Key Vault, secure configuration practices, and least-privilege access.

You will also learn how to protect sensitive data at rest and in transit using .NET cryptography APIs, hashing, encryption, TLS, and secure logging practices that avoid exposing personally identifiable information.

Secure build and deployment workflows.

Security does not stop when the code compiles. You will learn how to strengthen your build and deployment process using GitHub Actions, Azure DevOps, Docker, dependency vulnerability checks, static code analysis, and secure CI/CD practices.

You will also examine common supply chain security risks and how to reduce exposure in modern .NET development workflows.

Secure AI-assisted development with GitHub Copilot

AI tools can help developers move faster, but faster code is not automatically safer code. This course shows you how to use GitHub Copilot and AI-assisted workflows with a security mindset.

You will learn how to review AI-generated code, identify risky suggestions, ask better security-focused prompts, and use Copilot to help find, explain, and fix vulnerabilities in C# and .NET applications.

Tools and technologies covered
  • C# and .NET
  • ASP.NET Core
  • ASP.NET Core Identity
  • Entity Framework Core
  • JWT, OAuth, OpenID Connect, MFA concepts
  • OWASP Top 10
  • Azure Key Vault
  • GitHub Copilot
  • GitHub Actions
  • Azure DevOps
  • Docker
  • Security Code Scan
  • OWASP Dependency Check
  • Secure configuration and secret management
Who this course is for

This course is for:
  • C# developers who want to write more secure applications
  • ASP.NET Core developers building APIs, MVC, Razor Pages, or Blazor applications
  • Backend developers responsible for authentication, authorization, and sensitive data
  • Software engineers preparing for secure coding expectations in professional teams
  • DevOps and cloud engineers supporting secure .NET deployments
  • Students and career changers who want secure coding knowledge as part of their developer portfolio
  • Architects and team leads who want practical security awareness across the .NET SDLC
Prerequisites

You should have basic experience writing C# code and running .NET applications. You do not need to be a cybersecurity expert. This course is designed to help developers build practical application security skills using familiar .NET tools and workflows.

By the end of the course

By the end of this course, you will understand how common vulnerabilities appear in C# and .NET applications, how to fix them, and how to build safer development habits into your everyday coding workflow. You will be better prepared to develop secure APIs, protect sensitive data, manage secrets, review AI-generated code, and contribute to more secure software delivery.

Compare Similar Courses

Compare the current course with similar options side-by-side to make the best choice based on pricing, ratings, and course duration.

* All prices and ratings are updated daily to ensure accuracy.

Is the Secure Coding in C# and .NET Coupon Worth It?

Expert review by Andrew Derek, Lead Course Analyst at CoursesWyn.•Last updated: June 17, 2026.

Based on analysis of the curriculum structure, student engagement metrics, and verified rating data, Secure Coding in C# and .NET is a high-value resource for learners seeking to build skills inDevelopment. Taught by Trevoir Williams on Udemy, the 8h course provides a structured progression from foundational concepts to advanced techniques— making it suitable for learners at all levels. The current coupon reduces the price by 93%, from $149.99 to $9.99, removing the primary financial barrier to enrollment.

✓What We Like (Pros)

  • Verified 93% price reduction makes this course accessible to learners on any budget.
  • Aggregate student rating of 4.6 out of 5 indicates high learner satisfaction.
  • Strong enrollment base with over 594 students demonstrates course popularity and trust.
  • Includes an official Udemy completion certificate and lifetime access to all future content updates.

!Keep in Mind (Cons)

The following limitations should be considered before enrolling in Secure Coding in C# and .NET:

  • The depth of Development coverage may be challenging for absolute beginners without the listed prerequisites.
  • Lifetime access is contingent on the continued operation of the Udemy platform.
  • Hands-on projects and quizzes require additional time investment beyond video watch time.
Final Verdict: Worth It
This course offers exceptional value with current pricing
✓

Course Rating Summary

Secure Coding in C# and .NET has earned an aggregate rating of 4.6 out of 5 from 594 verified student reviews on Udemy. Below is the detailed rating distribution showing learner satisfaction across all star levels.

4.6
★★★★★
594 Verified Ratings
5 stars
75%
4 stars
15%
3 stars
6%
2 stars
2%
1 star
2%

* Rating distribution is approximated from the aggregate score. Sourced from Udemy.

About the Instructor — Trevoir Williams

Secure Coding in C# and .NET is taught by Trevoir Williams, a Udemy instructor specializing in Development. For the full instructor biography, professional credentials, and a complete list of their courses, visit the official instructor profile on Udemy.

•Instructor Name: Trevoir Williams
•Subject Area: Development
•Teaching Approach: Practical, project-based instruction focused on real-world application of Development skills.

Frequently Asked Questions

The following questions and answers cover the most common queries about Secure Coding in C# and .NET, its coupon code, pricing, and enrollment process.

About the Author

AD

Andrew Derek

Lead Course Analyst at CoursesWyn with 8+ years of experience evaluating online learning platforms. I've analyzed 500+ Udemy courses and helped thousands of learners choose the right courses for their career goals.

⭐4.8/5 Rating
✓Trusted by 10K+ Students

Explore More Resources

Discover more Development resources, related courses, and helpful guides. Browse similar topics, explore instructor profiles, or check out our complete library of verified Udemy coupon codes to continue your learning journey.

More Development Courses You Might Like

Similar Udemy courses in Development with verified coupons: