Security is the most important component of all companies. Every computer system in a company has an official method by which its users access it. This mostly involves a system of authentication where the user enters a password or other kind of credential to prove their identity. Upon successful authentication, the user can access the system with only the rights allocated to their specific account. Given this, read below to know how backdoors affect your company’s security. Completing a cybersecurity free course with certificate online can help you to kick start your lucrative career.