Authentication - GCSE Computer Science Definition

Authentication is the process of verifying the identity of a person or device, ensuring that the entity requesting access is genuinely who or what it claims to be. In the context of GCSE Computer Science, authentication often involves the use of passwords, PIN numbers, biometric data, or other secure methods to protect sensitive information and systems from unauthorised access. It's a crucial part of cybersecurity, helping to safeguard data integrity and privacy in both personal and organisational environments. Understanding authentication helps students appreciate how digital security measures are implemented to protect against potential threats and vulnerabilities.