What does a hacker typically NOT do?

A hacker typically does not help secure systems from threats because their primary activities often involve exploiting vulnerabilities rather than protecting or reinforcing system security. While some individuals may identify as "ethical hackers" – who operate under specific guidelines to test and improve security measures – the general profile of a hacker focuses on unauthorized access and finding weaknesses in networks for malicious purposes or personal challenge.

In contrast, the other options represent behaviors that are commonly associated with hacking activities. Attempting to gain unauthorized access is a hallmark of a hacker's approach, whether for stealing data, installing malware, or disrupting services. Exploring network vulnerabilities is also a significant aspect of hacking, as understanding these weaknesses can facilitate further intrusion. Additionally, breaking into systems for amusement reflects a mindset where individuals may engage in hacking purely for the thrill or challenge of overcoming security measures.