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.
A sophisticated threat actor using an MO similar to Scattered Spider is camouflaging itself with convincing impersonation techniques in targeted attacks.
A novel phishing kit has been observed impersonating the login pages of well-known cryptocurrency services as part of an attack cluster designed to primarily target mobile devices