Impersonation refers to the act of pretending to be someone else or assuming another person's identity with the intent to deceive or mislead others. In the context of security, impersonation often refers to the malicious practice of impersonating individuals, organizations, or systems for illicit purposes. Attackers may impersonate legitimate users, employees, or trusted entities to gain unauthorized access to systems, deceive individuals into revealing sensitive information, or manipulate others for financial gain or personal advantage. Impersonation attacks can occur through various channels, including email, phone calls, social media, or online platforms.