OWASP API Security Top 10 2023: Comprehensive Security Guide

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The OWASP API Security Top 10 2023: Comprehensive Security Guide taught by Andrii Piatakha is a hands‑on Udemy course that equips developers and security professionals with the skills needed to protect modern APIs. Updated July 2026, this free [course topic] course covers the latest OWASP API Top 10 vulnerabilities, practical mitigation techniques, and real‑world testing strategies. Learners gain a certification‑ready foundation for building resilient, authentication‑strong APIs, making it an ideal choice for anyone searching for a “free API security course,” “API security Udemy course,” or “learn API security online.”

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What You'll Learn

• Build secure API endpoints that resist the OWASP API Top 10 2023 attack patterns.
• Master authentication and authorization mechanisms such as OAuth 2.0 and JWT for API protection.
• Learn how to identify and remediate Broken Object‑Level Authorization and Mass Assignment flaws.
• Understand the impact of security misconfiguration and rate‑limiting gaps on API integrity.
• Create comprehensive threat‑modeling documents tailored to API architectures.
• Implement robust input validation and CORS policies to safeguard data in transit.
• Apply automated security testing tools to uncover hidden vulnerabilities in APIs.
• Analyze incident‑response workflows for rapid mitigation of API security breaches.

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Course Details

• Instructor: Andrii Piatakha
• Rating: 4.3 stars (based on student reviews)
• Language: English (en‑US)
• Certificate: Yes, upon completion

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What This Course Covers

Module 1: Introduction to OWASP API Top 10 2023

• Overview of the ten most critical API vulnerabilities identified by OWASP in 2023.
• Real‑world impact analysis of each vulnerability on modern applications.
• Mapping the OWASP Top 10 to common API design patterns and architectures.

Module 2: Vulnerability Deep‑Dive – Broken Object‑Level Authorization & Mass Assignment

• Detailed walkthrough of Broken Object‑Level Authorization exploitation techniques.
• Hands‑on lab: detecting and fixing insecure object references in a sample API.
• Strategies for preventing mass‑assignment attacks through whitelist validation.

Module 3: Security Misconfiguration & Rate Limiting

• Identification of misconfiguration pitfalls across servers, containers, and cloud services.
• Implementation of effective rate‑limiting controls using middleware and API gateways.
• Case study: mitigating denial‑of‑service vectors targeting API endpoints.

Module 4: Authentication, Authorization, OAuth 2.0 & JWT

• Core concepts of token‑based authentication and secure session management.
• Step‑by‑step configuration of OAuth 2.0 flows for third‑party API integration.
• Best practices for signing, verifying, and rotating JWTs in production environments.

Module 5: Data Protection, CORS, and Third‑Party API Risks

• Techniques for encrypting sensitive data in API responses and request payloads.
• Proper CORS configuration to prevent cross‑origin attacks while enabling legitimate access.
• Risk assessment framework for safely consuming external APIs and services.

Module 6: Secure API Design, Testing, and Incident Response

• Guidelines for embedding security into the API development lifecycle from design to deployment.
• Automated testing pipelines using tools such as OWASP ZAP and Postman security scripts.
• Incident‑response checklist tailored to API breach scenarios, including forensic data collection.

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Who Should Take This Course

• Developers who write RESTful or GraphQL APIs and need to embed security from day one.
• Security analysts looking to expand their vulnerability‑assessment toolkit to include API‑specific threats.
• Software engineers transitioning to roles that require secure API design and implementation.
• Students and beginners eager to learn API security best practices without prior deep security knowledge.
• Tech leads and architects responsible for defining security standards across microservice ecosystems.

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Prerequisites

• Basic understanding of HTTP methods, request/response cycles, and JSON data formats.
• Familiarity with at least one programming language used for API development (e.g., JavaScript, Python, Java).
• Recommended: Prior exposure to general web security concepts such as OWASP Top 10 for web applications.

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Why Enroll in This Course

The course delivers up‑to‑date coverage of the OWASP API Top 10 2023, paired with hands‑on labs that translate theory into actionable skills. A free coupon provides 100 % off for a limited time, allowing learners to access the full curriculum without financial commitment. Compared with other generic security tutorials, this training focuses exclusively on API attack surfaces, offering a depth of coverage that prepares students for real‑world security challenges.

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Course Highlights

• Lifetime access to all video lessons and downloadable resources, enabling continuous reference.
• Self‑paced learning that fits busy schedules while maintaining a structured progression.
• Certificate of completion that validates expertise in API security for resumes and LinkedIn profiles.
• Practical labs using real‑world API examples to reinforce each security concept.
• Mobile‑friendly platform so you can study on laptops, tablets, or smartphones wherever you are.

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Frequently Asked Questions

Q: Is this course really free?
A: Yes, the course can be accessed at no cost when you apply the current free coupon. The 100 % discount removes the price barrier, allowing anyone to enroll and complete the training without paying.

Q: What will I learn in this API security course?
A: You will master the OWASP API Top 10 2023 vulnerabilities, learn to secure authentication and authorization flows, and gain hands‑on experience with tools for testing and mitigating API threats. The curriculum also covers secure design, data protection, and incident‑response strategies.

Q: Do I get a certificate after completing this course?
A: Yes, Udemy issues a certificate of completion once you finish all modules and pass the practical assessments. This credential can be added to professional profiles to demonstrate verified API security skills.

Q: Is this course suitable for beginners?
A: Absolutely. While the material dives deep into advanced topics, the instructor introduces each concept with clear explanations and starter labs, making it accessible to those with basic programming knowledge.

Q: How long do I have to enroll for free?
A: The free coupon is available for a limited time, typically a few weeks from the date you discover it. Enrolling before the coupon expires guarantees the 100 % discount, after which the standard Udemy price applies.

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Final Thoughts

If you need to protect modern web services, the OWASP API Security Top 10 2023: Comprehensive Security Guide offers a focused, practical pathway to mastery. Enroll now, claim the free coupon, and start building secure, resilient APIs today.