Raúl Calvo Laorden is a Spanish Senior Cybersecurity Analyst (Pentester) who is known in the online community as r4ulcl. He has a keen interest in hacking, particularly in Active Directory (AD), WiFi, and Radio Frequency (RF). Raúl enjoys working with Docker and git. He also has a passion for music, video games, and tinkering with electronic devices. Raúl is the author of WiFiChallenge Lab, a 100% virtualized realistic lab designed for learning and practicing wifi hacking (presented in RootedCON 2022). He is also the creator of wifi_db, a script that parses Aircrack-ng captures into a SQLite database, extracting valuable information such as handshakes, MGT identities, interesting relations between APs, clients and their probes, WPS information, and a global view of all the APs seen. Additionally, he holds the OSCP and CRTP certifications. In his free time, Raúl dedicates himself to programming hacking and cybersecurity tools. He also maintains his own micro-datacenter consisting of multiple servers and services where he continually learns and practices new technologies.