An Advanced Persistent Threat (APT) is a prolonged and targeted cyberattack where an intruder gains access to a network and remains undetected for an extended period. APTs often aim to steal sensitive information or disrupt operations, making them a significant concern for organizations. These attacks typically involve sophisticated techniques and are carried out by skilled adversaries, often linked to nation-states or organized cybercriminal groups. APTs usually follow a multi-phase approach, starting with reconnaissance to gather information about the target. Once access is gained, attackers establish a foothold within the network, allowing them to move laterally and escalate privileges. This stealthy method enables them to maintain persistence and achieve their objectives without raising alarms.