Email Impersonation
Noun · Security & Infosec
Definitions
A tactic where an attacker makes an email appear to come from a trusted person, brand, or internal source in order to deceive recipients. It may involve spoofed domains, lookalike addresses, display-name tricks, or compromised real accounts.
In plain English: Pretending an email comes from someone trusted in order to trick people.
Example: "The finance team nearly wired funds after an email impersonation attack mimicked the CFO's tone and signature."