Threat prioritization is the process of deciding which security risks should be handled first. Teams usually rank threats by impact, likelihood, and whether an issue is already being actively exploited. In practice, this means comparing things like exposed services, known vulnerable software, weak identities, phishing exposure, and emerging risks such as AI misuse.
It matters because security resources are limited. A team that chases every new headline can miss the problems attackers use most often: unpatched systems, stolen credentials, business email compromise, and poor access control. Good prioritization helps defenders focus on controls that reduce real risk, such as patching exploitable flaws, tightening authentication, reviewing logs, and limiting permissions. In AI environments, the same rule applies: assess data leakage, prompt injection, and excessive tool access, but do not let novelty push basic hygiene out of the queue.