Work your way into infosec
Penetration Testing with Kali Linux (PWK)
Our flagship ethical hacking course, designed and written by the Kali Linux developers.
Advanced Web Attacks & Exploitation (AWAE)
Learn advanced attacks and exploitations for web applications.
Evasion Techniques & Breaching Defenses
PEN-300 is an advanced penetration testing course. NEW for 2020.
You don’t buy an OffSec certification.
You earn it.
“A will to suffer…is required for sure in order to finish the course.”
— Wesley Neelen – dearbytes.com
"If you are already considering to take the course, don’t hesitate and just go for it – you won’t regret it."
— Michael R. Heinzl
"Having been in information security for the past 6 or 7 years and having been on various security related courses I must say that the 101 course from offensive-security is one of the best."
— Jason Alexander CISSP, C|EH, CCSA, MCSE
Open Source Tools for the Infosec Community
We create, host, maintain, and evolve some of the top free penetration testing tools for infosec professionals.
News from behind the Door
OSCP holder Rana Khalil shares her journey to becoming a cybersecurity analyst and her thoughts on what it takes to succeed.Read More
Security researchers at Offensive Security discovered a vulnerability in the XPC service of Microsoft Teams. Here's how it works and how to secure it.Read More