overthewire.org/wargames/natas/

youtube.com/playlist?list=…

Web Apps Pentesting (Arabic)

Share your videos with friends, family, and the world

portswigger.net/web-security/l…

Learning path | Web Security Academy

A step by step journey, from beginner to expert level, through the Web Security Academy - brought to...

pentesterlab.com

PentesterLab: Learn Web Penetration Testing: The Right Way

Get started and check out our free exercises, or unlock access to over 400+ exercises and counting w...

0xf.at

websec.fr

youtube.com/playlist?list=…

0x41414141

Share your videos with friends, family, and the world

pwn.eonew.cn

ropemporium.com

exploit.education/protostar/

pwnable.tw

pwnable.kr

pwn.college

pwnable.xyz

pwnable.xyz

Here you will find pwnables for beginners. Most of the challenges were created for an internal event...

youtube.com/playlist?list=…

Binary Exploitation / Memory Corruption by LiveOverflow

Short ~10min videos about binary exploitation. From beginner to advanced

cryptohack.org

cryptopals.com

trytodecrypt.com/index.php

Try To Decrypt!

Try to decrypt some encrypted texts. There are diffent levels from beginner to expert.

coursera.org/learn/crypto

Cryptography I

In the Cryptography I course from Stanford University on ...

udacity.com/course/applied…

Applied Cryptography | Free Courses | Udacity

Cryptography is present in everyday life. Take Udacity's Applied Cryptography course and learn all a...

khanacademy.org/computing/comp…

Cryptography | Computer science | Computing | Khan Academy

How have humans protected their secret messages through history? What has changed today?

overthewire.org/wargames/krypt…

challenges.re

Reverse Engineering challenges

Distinction between levels is very blurred and not very strict, so don't rely on them fully. But fee...

crackmes.one

Crackmes

This is a simple place where you can download crackmes to improve your reverse engineering skills. I...

cybertalents.com

CyberTalents – A Global Platform For Cybersecurity Talents

CyberTalents is a global platform where cybersecurity talents can learn, practice, compete get hired...

hackthebox.com

echoctf.red

echoCTF.RED

An online platform to train your offensive and defensive IT security skills.

tryhackme.com

ringzer0ctf.com/challenges

Home - RingZer0 CTF

RingZer0 Team Online CTF. Solve challenges earn points.

ctflearn.com

backdoor.sdslabs.co

play.picoctf.org/practice

picoCTF

overthewire.org/wargames/