About the Author

Gilberto Nájera-Gutiérrez leads the Security Testing Team (STT) at Sm4rt Security Services, one of the top security firms in Mexico.

He is also an Offensive Security Certified Professional (OSCP), an EC-Council Certified Security Administrator (ECSA), and holds a master's degree in computer science with specialization in artificial intelligence.

He has been working as a Penetration Tester since 2013 and has been a security enthusiast since high school; he has successfully conducted penetration tests on networks and applications of some of the biggest corporations in Mexico, such as government agencies and financial institutions.

To Leticia, thanks for your love, support and encouragement; this wouldn't have been possible without you. Love you Mi Reina!

To my team: Daniel, Vanessa, Rafael, Fernando, Carlos, Karen, Juan Carlos, Uriel, Iván, and Aldo. Your talent and passion inspire me to do things like this and to always look for new challenges. Thank you guys, keep it going!