Borja Villarreal Vaquero is a cybersecurity analyst with experience at S21sec since February 2021, focusing on the categorization and analysis of emails, utilizing tools such as TheHive, QRadar, ServiceNow, OTRS, Splunk, and Crowdstrike. Prior to this role, Borja worked as a full-stack developer at Accesible Travel Spain from September 2020 to February 2021, where skills in .NET, SQL, JavaScript, C#, and Visual Basic were applied. Borja holds a degree in Computer Engineering from Universidad Nebrija, completed in September 2021.