HackThisSiteDonate HTS costs up to $300 a month to operate. We need your help! Challenges Get InformedGet InvolvedCommunicateAbout HTS Partners HackThisSite.org is a free, safe and legal training ground for hackers to test and expand their ethical hacking skills with challenges, CTFs, and more. Active since 2003, we are more than just another hacker wargames site. We are a living, breathing community devoted
