Guillaume Lopes is a pentester with 10 years of experience in different fields (Active Directory, Windows, Linux, Web applications, Wifi, Android). He is currently working as a Senior Penetration Tester at RandoriSec and is also a member of the Checkmarx Application Security Research Team.

He also likes to play CTFs (Hackthebox, Insomni’hack, Nuit du Hack, BSides Lisbon, etc.) and he also gives a hand to the Tipi’hack team.