Listado de sitios para enfrentarse a retos (CTF), labs, etc.

Atenea (CCN-Cert) - https://atenea.ccn-cert.cni.es/home
Alert to win - https://alf.nu/alert1
Attack-Defense - https://attackdefense.com
Bancocn - https://bancocn.com
Certified Secure - https://lnkd.in/gBKK-i-s
CMD Challenge - https://cmdchallenge.com
CryptoHack - https://cryptohack.org/
CTF Komodo Security - https://ctf.komodosec.com
Ctftime - https://ctftime.org/
Cyberdefenders - https://lnkd.in/gCf8v4Ju
CyberSecLabs - https://lnkd.in/gmyzMXju
EchoCTF - https://echoctf.red/
Explotation Education - https://exploit.education
Google CTF - https://lnkd.in/e46drbz8
Hack The Box - https://lnkd.in/ggfAMdQ8
Hackaflag BR - https://hackaflag.com.br/
Hacker Security - https://lnkd.in/gJbSaY3f
Hacker101 - https://ctf.hacker101.com
Hacking-Lab - https://hacking-lab.com/
Hacksplaining - https://lnkd.in/gVd9dNkK
HackTheBox - https://www.hackthebox.com
Hackthis - https://www.hackthis.co.uk
HackXpert - https://hackxpert.com/
HSTRIKE - https://hstrike.com
ImmersiveLabs - https://immersivelabs.com
LetsDefend- https://letsdefend.io/
NewbieContest - https://lnkd.in/gZ4UjDhy
OSBOXES - http://www.osboxes.org/
OverTheWire - http://overthewire.org
Penetration Testing Practice Labs - https://lnkd.in/grQev9Kk
PentestIT LAB - https://lab.pentestit.ru
Pentestlab - https://pentesterlab.com
PicoCTF - https://picoctf.com
PortSwigger Web Security Academy - https://lnkd.in/gAPq2ezr
Practical Pentest Labs - https://lnkd.in/gUSqv6xS
Pwn college - https://dojo.pwn.college/
PWNABLE - https://lnkd.in/gNcyqG64
RangeForce - https://lnkd.in/gGy3feqt
Root in Jail - http://rootinjail.com
Root-Me - https://www.root-me.org
SANS Challenger - https://lnkd.in/gG-5_ZPF
SmashTheStack - https://lnkd.in/gMFNTURc
TCM Security - https://lnkd.in/gbQinqvf
The Cryptopals Crypto Challenges - https://cryptopals.com
Try Hack Me - https://tryhackme.com
Vulnhub - https://www.vulnhub.com
Vulnmachines https://vulnmachines.com/
W3Challs - https://w3challs.com
WeChall - http://www.wechall.net
Zenk-Security - https://lnkd.in/g_y_p5ha
Webgoat - https://lnkd.in/gjsgegYw