Spoofing impersonates trusted users, devices, or services to bypass trust and cause fraud; verify identities with strong authentication and signed messages.
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Background for this topic.
Spoofing is the forging of an identity or origin so a message, connection, website, or phone call appears to come from a trusted source. Attackers may impersonate an executive by email, imitate a domain, falsify caller ID, or place packets with a forged source IP address. The goal can be to induce payment or disclosure, deliver malware, bypass trust checks, or obscure the source of traffic. IP spoofing usually prevents a reply from reaching the attacker, but can support reflection attacks; it is not by itself proof of access to the claimed system.
Mitigation depends on the channel. For email, configure and enforce SPF, DKIM, and DMARC, while treating display names and caller ID as untrusted signals. Use phishing-resistant authentication, verify sensitive requests through an independent channel, and validate domains and certificates before users enter credentials. At network boundaries, apply ingress and egress source-address filtering, monitor anomalous traffic, and design services not to trust a claimed address alone.
Several Apple device users have experienced recent incidents where they have received incessant password reset prompts and vishing calls from a number spoofing Apple's legitimate customer support line.
A new phishing-as-a-service (PhaaS) named 'Darcula' uses 20,000 domains to spoof brands and steal credentials from Android and iPhone users in more than 100 countries. [...]
Several Apple customers recently reported being targeted in elaborate phishing attacks that involve what appears to be a bug in Apple's password reset feature. In this scenario, a target's Apple devices are forced to display dozens of system-level prompts that prevent the devices from being used until the recipient responds "Allow" or "Don't Allow" to each prompt. Assuming the user manages not to fat-finger the wrong button on the umpteenth password reset request, the scammers will then call the victim while spoofing Apple support in the caller ID, saying the user's account is under attack and that Apple support needs to "verify" a one-time code.