What is a hacker?

A hacker is primarily defined as a perpetrator who infiltrates computer networks. This definition encompasses individuals who gain unauthorized access to computer systems, often with the intent to steal data, disrupt operations, or exploit vulnerabilities. Hackers can utilize various tools and techniques to bypass security measures, making their role in the realm of information technology significant, especially concerning cybersecurity.

While it is true that some hackers may possess skills similar to those of IT security professionals, their motivations can differ vastly. IT security professionals typically aim to protect networks and systems from such intrusions, whereas hackers might seek to exploit them for illicit purposes. The stigma surrounding the term "hacker" often highlights the criminal aspect of these activities, differentiating them from other roles in technology, such as software developers or investors, who operate within legal and ethical frameworks.

Understanding this distinction is crucial, as it underscores the importance of cybersecurity measures in safeguarding public and private networks against unauthorized access and data breaches.