Which of the following best describes a 'Hacker'?

The best description of a 'Hacker' is someone who is an unauthorized user who may or may not have malicious intent. This definition captures the complex nature of hacking. It acknowledges that not all hackers are malicious; some may engage in hacking for ethical reasons, such as finding vulnerabilities to improve security, or for educational purposes.

The term 'hacker' encompasses a broad range of individuals with various motivations and skills. Some hackers operate under the ethics of "white hat" hacking, where their goal is to discover and help correct security flaws. Conversely, "black hat" hackers engage in illegal activities with harmful intentions. The versatility in motivations and actions highlights the necessity of recognizing that hacking is not inherently bad; context and intent are critical factors.

The other definitions fail to capture the nuanced understanding of what hacking involves. Describing a hacker strictly as someone with malicious intent overlooks the existence of ethical hackers and their contributions to cybersecurity. Similarly, stating a hacker has no technical expertise or is merely a technician involved in security overlooks the diverse skills and knowledge that a hacker may possess.