Impersonation attacks mimic trusted people or services to trick users into sharing credentials, sending money, or bypassing security controls.
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Background for this topic.
Impersonation is the deliberate presentation of a person, organization, account, device, or service as another trusted identity. In information security, attackers use stolen credentials, look-alike domains, caller-ID or email spoofing, forged messages, and social engineering to persuade users or systems to accept that false identity. The aim may be account takeover, unauthorized access, fraudulent transactions, or disclosure of sensitive information.
Impersonation commonly targets identity providers, email and messaging systems, help desks, executives, suppliers, and customer-support channels. Useful controls include phishing-resistant multi-factor authentication, least-privilege access, email authentication and domain monitoring, and independent verification of unusual requests—especially changes to payment details or credentials. Detection and response depend on examining authentication logs, device and session context, reported fraudulent messages, and newly registered look-alike domains; compromised accounts should be revoked or reset promptly and impersonated parties notified where appropriate.
Gartner's Apeksha Kaushik on Why Detection Alone Can't Stop ID ImpersonationOrganizations facing deepfake-driven impersonation attacks must move beyond traditional detection strategies and build stronger identity resilience. Security leaders should adopt layered defenses that combine detection, prevention and broader risk signals to disrupt attackers.
The Federal Bureau of Investigation (FBI) warns that criminals are impersonating U.S. officials in phishing attacks targeting businesses and individuals who request city and county planning and zoning permits. [...]