Encryption and information security

Information technology encompasses the study and development of computer-based systems including software networks databases and communication systems. It plays a vital role in modern life by enabling efficient task completion and supporting various technological functions. With the increasing reliance on IT the protection of sensitive data has become essential making information security a critical field. This study focuses on defining information security as the means to ensure confidentiality protect information from theft hacking and unauthorized access particularly through modern tools such as encryption algorithms. It also examines electronic authentication processes and evaluates the role of information security in managing private companies. Additionally the study explores how these technologies can be applied to safeguard data and maintain privacy across different aspects of daily life.