Harpreet Singh is the author of Hands-On Red Team Tactics published by Packt Publishing and has more than 7 years of experience in the fields of ethical hacking, penetration testing, vulnerability research, and red teaming. He is also a certified OSCP (Offensive Security Certified Professional) and OSWP (Offensive Security Wireless Professional). Over the years, Harpreet has acquired an offensive skill set as well as a defensive skill set. He is a professional who specializes in wireless and network exploitation, including but not limited to mobile exploitation and web application exploitation, and he has also performed red team engagements for banks and financial groups.