What is a hacker?

A hacker is an individual who uses technical knowledge and computer skills to gain unauthorized access to systems or networks, often by bypassing security measures. Hackers can have various motivations, from curiosity and learning to malicious intent such as stealing data or causing harm. While the term 'hacker' is often associated with cybercriminals, it can also refer to ethical hackers who help organizations identify and fix security vulnerabilities. The cybersecurity industry distinguishes between 'white-hat' (ethical), 'black-hat' (malicious), and 'gray-hat' (mixed intent) hackers. Understanding these distinctions is important for recognizing the different roles hackers play in the digital world.