Is an ethical hacking certification offered by Offensive Security that teaches penetration testing methodologies and the use of the tools included with the Kali Linux distribution (successor of BackTrack). The OSCP is a hands-on penetration testing certification, requiring holders to successfully attack and penetrate various live machines in a safe lab environment. It is considered more technical than other ethical hacking certifications, and is one of the few certifications that requires evidence of practical penetration testing skills.