An attacker is using an unknown vulnerability that allows malicious actors to utilize the print...

A zero-day attack refers to an attack that exploits a previously unknown vulnerability in a software or system, which developers have had zero days to fix. In this scenario, the attacker is using an unknown vulnerability in the print spooler to gain elevated system privileges, which is a classic example of a zero-day attack. This term specifically denotes the unexpected nature of the attack and the absence of a patch or workaround at the time of discovery. Honeypots, internal threats, and external threats refer to different aspects of cybersecurity and do not specifically describe the exploitation of unknown vulnerabilities​​.