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 * [Computer Systems Security](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-858-computer-systems-security-fall-2014) - Prof. Nickolai Zeldovich (MIT OpenCourseWare)
 * [Ethical Hacking](https://www.hacker101.com/videos) - Hacker101
+* [Ethical Hacking - Basics (Kali 2021)](https://www.udemy.com/course/ethical-hacking-basics-kali-20211) - Arthur Salmon (Udemy)
+* [Ethical Hacking - SQL Injection Attack](https://www.udemy.com/course/sql-injection-ethical-hacking) - Sunil K. Gupta, Knowledge Aacademy (Udemy)
+* [Ethical Hacking for beginners: Beginner to Advance](https://www.udemy.com/course/ethical-hacking-for-beginners-beginner-to-advance) - PaceIT Academy (Udemy)
+* [Ethical Hacking from Scratch - The Complete Course](https://www.udemy.com/course/ethical-hacking-by-digiflax) - DIGIFLAX E-LEARNING (Udemy)
+* [Ethical Hacking Kali Linux Command Line (CLI) Hands-On](https://www.udemy.com/course/kali-linux-command-line-cli-hands-on) - Musab Zayadneh (Udemy)
+* [Ethical hacking with Hak5 devices](https://www.udemy.com/course/ethical-hacking-with-hak5-devices) - David Bombal (Udemy)
+* [Foundations of Hacking and Pentesting Android Apps](https://www.udemy.com/course/foundations-of-hacking-and-pentesting-android-apps) - Scott Cosentino (Udemy)
+* [Introduction to Dark Web, Anonymity and Cryptocurrency](https://www.udemy.com/course/introduction-to-dark-web-anonymity-and-cryptocurrency) - Rajneesh Gupta (Udemy)
 * [Introduction to Information Security](https://www.udacity.com/course/intro-to-information-security--ud459) - Wenke Lee, Mustaque Ahamad, Catherine Gamboa (Udacity)
+* [Learn Ethical Haacking From Scratch](https://www.udemy.com/course/learn-ethical-haacking-from-scratch) - Uzma Aslam (Udemy)
+* [Linux for Hackers and Pentesters](https://www.udemy.com/course/linux-for-hackers-and-pentesters) - Rajneesh Gupta (Udemy)
 * [Modern Binary Exploitation](https://github.com/RPISEC/MBE) - RPISEC
+* [Stanford Cryptography I](https://www.coursera.org/course/crypto) - Dan Boneh
+* [Stanford Cryptography II](https://www.coursera.org/course/crypto2) - Dan Boneh
+* [Start Ethical Hacking with Parrot Security OS (Alt. to Kali)](https://www.udemy.com/course/ethical-hacking-with-parrot-security-os) - Seyed Farshid Miri (Udemy)
 * [The Complete Cyber Security & Hacking Course](https://academy.ehacking.net/p/cyber-security-training-hacking-course) - INSEC-TECHS (EH Academy)
+* [WireShark for Ethical Hacking](https://www.udemy.com/course/wireshark-for-ethical-hacking-new) - Musab Zayadneh (Udemy)
 * [Zero to Hero: A Practical Network Penetration Testing Course](https://www.youtube.com/playlist?list=PLLKT__MCUeiwBa7d7F_vN1GUwz_2TmVQj) - The Cyber Mentor