Achei a postagem interessante, vou ajudar a complementar com alguns links que tenho.
LABORATÓRIOS GRATUITOS PARA TESTAR SUAS HABILIDADES REDTEAM/BLUETEAM e CTF
· Ataque-Defesa - https://attackdefense.com
· Alerta para ganhar - https://alf.nu/alert1
· Bancocn - https://bancocn.com
· CTF Komodo Segurança - https://ctf.komodosec.com
· CryptoHack - https://cryptohack.org/
· Desafio CMD - https://cmdchallenge.com
· Explotação Educação - https://exploit.education
· Google CTF - https://lnkd.in/e46drbz8
· HackTheBox - https://www.hackthebox.com
· Hackthis - https://www.hackthis.co.uk
· Hacksplaining - https://lnkd.in/eAB5CSTA
· Hacker101 - https://ctf.hacker101.com
· Segurança Hacker - https://lnkd.in/ex7R-C-e
· Hacking-Lab - https://hacking-lab.com/
· HSTRIKE - https://hstrike.com
· ImmersiveLabs - https://immersivelabs.com
· NewbieContest - https://lnkd.in/ewBk6fU5
· OverTheWire - http://overthewire.org
· Laboratórios Práticos Pentest - https://lnkd.in/esq9Yuv5
· Pentestlab - https://pentesterlab.com
· Hackaflag BR - https://hackaflag.com.br/
· Laboratórios de Prática de Testes de Penetração - https://lnkd.in/e6wVANYd
· PentestIT LAB - https://lab.pentestit.ru
· PicoCTF - https://picoctf.com
· PWNABLE - https://lnkd.in/eMEwBJzn
· Root-Me - https://www.root-me.org
· Raiz na Cadeia - http://rootinjail.com
· SANS Challenger - https://lnkd.in/e5TAMawK
· SmashTheStack - https://lnkd.in/eVn9rP9p
· Os desafios da criptografia Cryptopals - https://cryptopals.com
· Experimente Hack Me - https://tryhackme.com
· Vulnhub - https://www.vulnhub.com
· W3Challs - https://w3challs.com
· WeChall - http://www.wechall.net
· Zenk-Segurança - https://lnkd.in/ewJ5rNx2
· Ciberdefensores - https://lnkd.in/dVcmjEw8
· PortSwigger - https://portswigger.net/web-security
Cursos
· Solyd Offensive Security
· Ricardo Longatto