online ctf games
overthewire good ctf for beginners link
ae27ff ctf with arg-like puzzles link
pwnable.kr ctf about system exploits link
root me ctf with many challanges link
enigma group ctf about web app exploits link
wechall ctf site with a list of other ctfs. link
offnline ctf games
vulrnhub many vms to practice with link
metaspoitable vm to practice metaspoit with link
buggy web app a very buggy web app link
damn vulrnable ios app ios app with many commom vulrns link
damn vulrnable web app web app with many vulrns link
owasp mutillidae web app with many common vulrns by owasp link
damn vurlnable linux linix vm to hack on link
cool github links
programming books free programming book to download link
movies for hackers recomended hacker movie list link
awesome self-hosted list of software to selfhost with link
appsec ezine sec ezine with many cool links link
computer science courses list of awesome free courses link
awesome sysadmin list of sysadmin resources link
pentest cheatsheet list of pentest cheatsheets link
hacker websites
phrack one of the oldest hacker ezines link
defcon one of the biggest hacker conferences link
become a hacker a good document to get into the hacker mindset link
all it books website with many downloadable tech ebooks. link
exploit database a database of software exploits link
textfiles many text files from the early days of computing link
hackaday website with many cool hardware hacks/projects. link

warning: this is real malware so please proceed with caution

malware analaysis
thezoo github collection of malware link
vx heaven torrent of viruses from vx heaven link
msdos viruses collection of old msdos viruses link
msdos viruses many good things related to malware link
hacking is where technology and human creativity collide.