Which of these factors could lower a target's hack value?

High security measures protecting the target are indeed a significant factor that can lower a target's hack value. When a target exhibits robust security protocols—such as advanced firewalls, intrusion detection systems, encryption practices, and strict access controls—it increases the difficulty for attackers to breach the systems. This heightened challenge often leads attackers to pursue easier targets, diminishing the attractiveness or 'hack value' of the well-protected target. Essentially, the presence of substantial defenses discourages potential intruders, as the likelihood of successful exploitation is considerably lessened.

In contrast, high public interest in a target could actually increase its hack value, as attackers often seek targets that provide significant public attention and notoriety. Accessibility of the target similarly impacts its attractiveness; the easier it is to reach or penetrate a system, the more appealing it becomes to a potential attacker. Low information sensitivity, while it might imply that the data isn't particularly valuable, does not inherently offer a strong deterrent compared to robust security measures that actively repel threats. Thus, while various factors influence hack value, strong security measures are a prime deterrent, effectively reducing the chances of a successful attack.