active threat
A computing security term for an ongoing or imminent threat that is actively targeting a system, as opposed to a passive vulnerability.
An intrusion detection system was introduced to detect active threats.
It is necessary to document the response procedures for active threats.
Passive threat; refers to a vulnerability or risk that is not actively exploited, such as an unpatched system, whereas 能動的脅威 is an active attack or ongoing malicious activity.
Compound of 能動的 (active, proactive) and 脅威 (threat). A technical term likely calqued from English 'active threat' in the context of computer security.