Pasquale “sid” Fiorillo is a cybersecurity professional with over 15 years of experience in the IT sector and a solid reputation built both in the technical field and within the Italian hacker culture.

Having grown up in the final phase of the Italian underground scene, Fiorillo is a staunch supporter of free software and the principles of knowledge sharing. At a young age, he co-founded and published “Italian Hard Phreaking” (IHP), an e-zine that became a benchmark for enthusiasts of hacking, phreaking, and reverse engineering. The project, created with the LogInProgress Team, represents one of the last testaments to the classic hacker ethic in Italy.

Today, Pasquale holds the role of CTO and Senior Security Auditor for ISGroup SRL, where he performs advanced penetration testing and vulnerability assessment on complex infrastructures, cloud environments, and mission-critical web applications. His audits are known for their technical precision, realistic offensive approach, and ability to identify flaws not detected by automated tools.

He is an author and co-author of internationally recognized vulnerabilities, published with official CVEs and documented on reference platforms such as USH.it, Exploit-DB, and Full Disclosure.

Equipped with a deep technical vision and strong cultural awareness, Fiorillo continues to actively contribute to the security landscape, combining professional rigor, a hacker spirit, and a commitment to digital freedom.