Development✓ Checked✕ Expired
Secure Coding in C# and .NET
Build secure .NET apps with OWASP, authentication, authorization, data protection, secrets, DevSecOps, and AI tools. this is applicable to .NET Udemy Discount Offers.
by Trevoir Williams · ⭐ 4.6 via Udemy · 594 students · English
$9.99$149.9993% OFF
Claim Coupon →
Code auto-applies at Udemy checkout
✓ 93% discount manually re-verified, not an estimate.
✓ Certificate + lifetime access included by Udemy.
⚠ Redemption-limited — can run out without notice.
Price history First-party data
Tracked since June 17, 2026 to June 17, 2026. Red dot = current price ($9.99) — CoursesWyn records the price on each sync.
Current price
$9.99
Original price
$149.99
Tracked since
June 17, 2026
Last checked
Jun 17
Price and coupon status are recorded from a periodic sync of Udemy’s public catalog. This snapshot was taken on June 17, 2026. Prices are always confirmed at checkout on the provider’s site.
Deal score Computed, methodology below
8.6
/ 10
Discount depth
93%
Udemy rating
4.6 / 5
Popularity
594 students
Tracking length
51 days
Score = weighted average of discount depth, how often CoursesWyn re-checks this code, historical price volatility, and how fast past redemptions were claimed. Not an editorial opinion on the course itself.
Live verification log Updated automatically
Live verification active
Jun 17, 2026Listed by CoursesWyn — price recorded at $9.99Listed
Jun 17, 2026Coupon checked — checkout price $9.99 · listed until Jul 7Working
Course details Synced from Udemy
Fields below are pulled from Udemy’s public catalog and recorded when CoursesWyn syncs — they are catalog data, not editorial description.
| Last checked | June 17, 2026 |
| Level | All Levels |
| Content | 8 hours |
| Language | English |
| Requirements | Basic C# experience and the ability to run simple .NET applications · Familiarity with Visual Studio or Visual Studio Code |
| Certificate | Yes, on completion |
| Access | Lifetime, mobile & TV |
What you'll learn From the course description
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
How to redeem this coupon
Click "Claim Coupon"
You'll be redirected to Udemy and the discount is applied automatically — no manual code entry needed.
Confirm the price at checkout
The page should show $9.99. If it shows the full $149.99, the code has expired — the checkout price is the source of truth.
Sign in or create a free account
Required by Udemy to complete enrollment, not by CoursesWyn.
Enroll and start learning
Access is immediate and permanent, independent of this coupon page.
Coupon & redemption FAQ
Is the Udemy coupon for "Secure Coding in C# and .NET" still valid? +
The coupon was last checked on June 17, 2026 and was working at that time. CoursesWyn re-checks coupons on a regular schedule, so the status on this page reflects our latest check — coupons can expire or run out of redemptions between checks.
How do I claim the Udemy discount or free coupon code for "Secure Coding in C# and .NET"? +
Click "Claim Coupon" on this page. The Udemy coupon is applied automatically at checkout, so you don't need to type the discount code manually. If the price doesn't drop, the coupon has expired — the price on the checkout page is the source of truth.
Can I download the certificate after completing this course? +
Yes. Enrolling gives you lifetime access to the course videos, and once you finish you can download a completion certificate directly from Udemy. No coupon page like this one is needed after enrollment.
What happens if this Udemy coupon code is expired when I click it? +
You'll see the full course price on Udemy instead of the discounted price. The price on Udemy's checkout page is always the final authority — refresh this page later to see if a fresh coupon has been recorded.
Does CoursesWyn review or grade the course content? +
No. CoursesWyn records coupon validity, price, and public catalog data only. Rating and review counts shown are Udemy's own published figures, not CoursesWyn's opinion.
Development deals right now
420
active Development coupons tracked
404
are 90%+ off right now
$10.98
average price across the category today
Was this coupon page useful?
Compare similar active deals
| Course | Price | Discount | Rating | Checked | |
|---|---|---|---|---|---|
| Java Multithreading, Concurrency & Performance OptimizationDevelopment | $10.99$159.99 | 93% off | 4.6 | Aug 5 | View → |
| Mastering System Design: From Basics to Cracking InterviewsDevelopment | $9.99$159.99 | 94% off | 4.5 | Jul 25 | View → |
| AWS CDK for professionals (Python and TypeScript)Development | $9.99$149.99 | 93% off | 4.6 | Jul 10 | View → |
| Learn AWS Identity Management with AWS IAM, SSO & FederationIT & Software | $9.99$199.99 | 95% off | 4.6 | Jul 9 | View → |
Code copied to clipboard