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 and the FBI. In late 2014, Portugal-based Sonae bought the 60% of S21sec.