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Here are some frequently used terms of digital security. Access Control : A term used to ensure that resources are only granted to users who are entitled to them. Advanced Encryption Standard (AES) : An encryption standard designed to specify an unclassified, publicly disclosed, symmetric encryption algorithm. Authentication : Used by systems to confirm the identity of a user. Backdoor : A tool used by hackers or system security experts to access a computer system or network, bypassing the system’s usual security mechanisms. Bandwidth : The limited amount of communications data that any channel is capable of sending or receiving in a specific time. Biometrics : A security measure that uses physical characteristics to authenticate4 a user’s access to a system. Boot Sector Virus : A virus that can affect a computer system as it boots, before the operating system as even loaded. Botnet : A large number of Internet connected, infected computers tha