Offensive Security

Offensive Security, now operating as OffSec, is a cybersecurity training and penetration testing company headquartered in New York City, best known as the creators of the OSCP certification, Kali Linux, and the Exploit Database. Founded in 2007, Offensive Security has shaped the penetration testing industry more than perhaps any other company through their training programs and tools that have become the de facto standards for aspiring and practicing penetration testers worldwide.

Beyond training, OffSec provides professional penetration testing services leveraging their team of instructors and practitioners who are among the most skilled offensive security professionals in the world. Their consulting services include web application testing, network penetration testing, red team engagements, social engineering, and advanced adversary simulation.

OffSec's unique position as both a training provider and consulting firm means their testers are constantly developing and refining the most current exploitation techniques, giving clients access to cutting-edge offensive capabilities. The company maintains Kali Linux, the world's most popular penetration testing distribution, and Exploit-DB, a critical community resource. Their try harder philosophy permeates their consulting work, driving testers to pursue every possible attack vector with persistence.