Mr.

The scenario described fits the characteristics of an Advanced Persistent Threat (APT) attack. APTs are sophisticated, stealthy, and continuous computer hacking processes often orchestratedby groups targeting a specific entity. These attackers penetrate the network through vulnerabilities, maintain access without detection, and achieve their objectives, such as data exfiltration or financial theft, over an extended period. The fact that attackers exploited a minor vulnerability, maintained access for six months, and performed lateral movements to access critical systems for fraudulent transactions highlights the strategic planning and persistence typical of APT attacks.References:Incident Handler (CREST CPTIA) certification materials discuss APTs in detail, including their methodologies, objectives, and the importance of comprehensive security strategies to detect and mitigate such threats.