S21sec
Guillermo Almagro Alonso is a cybersecurity professional with extensive experience in cyber threat hunting and security operations. Currently serving at S21sec since June 2018, Guillermo has held various roles including Cyber Threat Hunter, Cyber Security Analyst, and SOC Cybersecurity Operator, engaging in activities such as security auditing with tools like Kali Linux and Nessus. Prior to this role, Guillermo worked as an intern in development and research at the Instituto Nacional de Tecnica Aeroespacial (INTA) for a brief period in early 2018. Guillermo holds a Master’s degree in Cybersecurity from Universidad Internacional de La Rioja (UNIR) and a Bachelor's degree in Computer Engineering from Universidad de Alcalá.
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S21sec
S21sec is a cybersecurity company. S21sec offers various security-related services (e.g. protection of critical infrastructures and personal data protection) and software (e.g. information security management systems) S21sec is focused on providing security for governs, energy and critical infrastructures, finance institutions and telco industries.S21sec has a CERT section, a 24-hour security intelligence center, and a CyberCrime one, where it collaborates with governs and governmental institutions like Europool[1] and the FBI.[2]More than 20% of the Dow Jones Eurostoxx 50 companies are clients of S21sec.