Cybersecurity, information technology security or computer security, is the body of technologies, processes, and practices designed to protect networks, computers, and data from attack, damage, and unauthorized access. Courses in cybersecurity teach professionals to spot vulnerabilities, fend off attacks, and immediately respond to emergencies.A career in cybersecurity is very fulfilling and requires a certain skillset and personality trait. The ability to write and understand code is a pre-requisite for middle to upper level cybersecurity professionals.