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Information Security Crash Course: Quick Steps to Safety (Udemy.com)

Learn key cybersecurity principles, secure coding, data protection, encryption, and lots more to safeguard systems

Created by: Andrii Piatakha

Last updated November 2025

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What you will learn

  • Implementing defense-in-depth strategies to enhance overall security
  • Recognizing common vulnerabilities in software development and mitigating them
  • Identifying and preventing buffer overflow attacks
  • Writing secure APIs to protect against unauthorized access and data leaks
  • Configuring secure default settings for applications and systems
  • Analyzing and responding to potential security breaches
  • Utilizing secure development lifecycle (SDLC) practices in project workflows
  • Monitoring and auditing logs for suspicious activity
  • Employing principle of least privilege to restrict access effectively
  • Securing third-party libraries and managing dependencies responsibly
  • Understanding cross-site request forgery (CSRF) and how to mitigate it
  • Designing secure error handling and logging mechanisms
  • Avoiding common pitfalls in hardcoded credentials and sensitive data exposure

How it compares

Against the other 523 rated Udemy courses in Hacking on CourseDuck:

  • Rating4.6 out of 5higher than 72% of them
  • Reviews192#394 of 524 by number of reviews
  • Length12.8 hourslonger than 79% of them
  • Last updatedNovember 2025more recently than 56% of them

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Course Description

Unlock the secrets to building secure systems with our Crash Course in Information Security! Master the essentials of secure coding, from input validation and encryption to Zero Trust architecture and modern authentication. Learn how to prevent vulnerabilities like SQL injection, secure communication channels, and protect sensitive data at every stage and lots more!

Whether you're a developer, IT professional, or cybersecurity enthusiast, this course delivers fast, actionable insights to safeguard systems in the cloud, on mobile, and beyond. Don't just code—code securely and stay ahead of cyber threats. Enroll now and elevate your cybersecurity skills!


What Will You Learn?

  • General Security Practices: Discover how to write code with safety in mind and adopt a security-first mindset.

  • Input Validation and Sanitization: Learn to secure your systems at the entry point by validating and sanitizing input data effectively.

  • Output Encoding: Protect your applications from common threats like XSS by mastering the art of secure output encoding.

  • Authentication and Session Management: Understand best practices for securely managing user credentials and ensuring session stability while preventing hijacking.

  • Robust Authorization Mechanisms: Control access with confidence using modern authorization techniques.

  • Zero Trust and Modern Authentication: Explore Zero Trust principles and advanced methods like biometric verification and behavioral analytics.

  • Encryption Basics: Dive into cryptography to protect sensitive data, whether in transit or at rest.

  • Database Security: Prevent SQL injection and unauthorized access with proven strategies.

  • Safe File Handling: Learn to handle file uploads securely and mitigate file-based vulnerabilities.

  • Securing Communication Channels: Safeguard data in transit with robust communication security practices.

  • System Hardening: Minimize your attack surface with secure system configurations.

  • Cloud Security Best Practices: Tackle unique challenges in cloud environments, from access control to secure storage management.

  • Mobile Application Security: Protect mobile platforms from common threats like weak authentication, insecure data storage, and malware.

Why Take This Course?

This course doesn’t just teach concepts—it equips you with actionable, real-world techniques you can apply immediately. By the end of this crash course, you’ll have a strong foundation in Information Security, empowering you to design, develop, and deploy secure systems with confidence.


Don’t just build software—build secure software. Protect your users, your data, and your reputation. Enroll today and start your journey toward mastering the essentials of cybersecurity and secure coding!"

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Instructor Details

Andrii Piatakha

Andrii Piatakha is a highly experienced educator, entrepreneur, project manager and software engineer with over 10 years of teaching experience and a proven track record of empowering students worldwide to achieve their goals in IT. As the Founder and CEO of IT-Bulls, Andrii has dedicated his career to promoting engineering excellence and shaping the next generation of IT professionals.


=== What Sets Andrii Apart? ===

Unparalleled Expertise
Andrii's career spans over a decade, during which he has mentored thousands of students and professionals. His hands-on experience as a software engineer and business leader allows him to deliver courses that are both practical and impactful. Andrii specializes in teaching Java, software architecture, cybersecurity, project management, web and application development, and more.

Transformative Education
Through his highly popular course “Java from Zero to First Job”, Andrii has helped countless individuals with no prior programming experience secure their first jobs in IT. This course is renowned for its structured approach, real-world projects, and ability to prepare students for success in the shortest possible time.

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Reviews

4.6

192 ratings on Udemy

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By Melat Ajeme on 9/18/2026

I am happy to have taken this course, and i gained a lot of knowledge and skills.

By Arpit Dhaka on 1/25/2026

I believe the instructions could be more visual rather than slides with contents to read as that can be done via tools like gpts as well

By Cristian Ruiz Martinez on 11/19/2025

"Elegí este curso porque buscaba fortalecer mis conocimientos en ciberseguridad y superó totalmente mis expectativas. El contenido es claro, actualizado y muy bien explicado. Las prácticas ayudan a entender conceptos clave y pude avanzar rápido sin dificultad. Definitivamente fue una buena elección y me siento más preparado profesionalmente."

By Nathaniel Nwazue on 11/4/2025

Ransomware and phishing are among the threats I encountered. However, with my knowledge of Cybersecurity, I was able to identify them to avert any problem.

By Julliard Macatuggal on 9/11/2025

The explanations are very detailed. Still, I think practical examples can be incorporated to easily visualize what the course teacher is explaining.

By Astyanax KPANIDJA on 9/5/2025

Euh, j'apprend beaucoup de ce cours, il est bien fait et bien structuré. Je suis satisfait de ces cours et je pense qu'ils sont beaucoup instructifs.

By bridget erubami on 8/29/2025

amazing, the lecturer made the lessons as though its an instructor lead one

By Carlos Francisco Idrovo Cuenca on 7/9/2025

Muy buena se presentación de la temática del curso.

By Rubén Sanz on 5/7/2025

Great thorical lessons but not practice in here. Great content

By Oluwatomiwa idowu on 3/17/2025

It’s self paced, questions Asked are answered…nevertheless, I don’t know if there can be a real life practical session, it would help the theory here

Showing all 10 reviews on CourseDuck

Read all 192 reviews on Udemy

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Quality Score

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Overall Score : 92 / 100