Our services are open to the public now!

Most of you know zSecurity for our shop or our online educational content, be it courses, articles in the hacking & security section, or videos on our youtube channel. What most people don’t know is we do much more than that, we just never really advertise it, interested customers just communicated with us via email and its been that way for years.

With the increase of these requests it made sense to make these services public and make it easy to get more information and enquire about them.

You can now use the services menu on the top right of the website to view all of our services, get detailed information about each and request / enquire about any of these services.

author avatar
Zaid Sabih

Ethical Hacker, Pentester & Computer Scientist

Zaid Al-Quraishi is an ethical hacker, computer scientist, and founder of zSecurity. He studied CS at UCD, graduating May 2016.

Zaid has a strong background and experience in ethical hacking, starting with tutorials in 2009 in an ethical hacking community, iSecur1ty. He also worked as a penetration tester (pentester) for this company.

In 2013 he started teaching his first course online in Arabic which received extremely positive feedback. This motivated him to create an English version of the course. The English course became the most popular and top paid course on Udemy for almost a year, which further motivated Zaid to design and teach more courses on ethical hacking.

He now offers a number of courses on ethical hacking and more than 800,000 students on Udemy and other teaching platforms such as StackSocial, StackSkills and zSecurity.

Zaid says: "I just love hacking and breaking the rules but don't get me wrong, I am an ethical hacker!"

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    2 Comments

  1. chester
    May 2, 2020

    Hello sir Zaid! I have a problem. I am taking your course of hacking from scratch and i have installed kali linux but when i, according to the course, type apt-get update in terminal and hit enter, it just shows its done and 3 errors with it :

    E: List directory /var/lib/apt/lists/partial is missing. – Acquire (13: Permission denied)
    W: Problem unlinking the file /var/cache/apt/pkgcache.bin – RemoveCaches (13: Permission denied)
    W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin – RemoveCaches (13: Permission denied)

    please help me!!
    thank you !!

  2. junio212132
    May 12, 2020

    Hey Z first of all thank you so much for doing all this awesome courses and being a wonderful teacher, i think ill never be grateful enough for what i have learn in your overall courses, when are you planning to bring new courses to the website please give me a response, Thank u much love keep the hard work u deserve everything in this world <3

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