Cyberattackers use spoofing to manipulate individuals and gain unauthorized access to systems by pretending to be someone they’re not. Spoofing can be prevented by implementing network security controls that validate the source and destination of packets.
What is spoofing verification?
In email, for example, a cybercriminal can spoofing detected the sender information shown in the From: field to appear like it’s coming from a trusted or familiar source. In this way, the attacker can entice people to click unsolicited links and download attachments that are in fact spoofed, delivering sensitive information directly to the attacker.
IP address spoofing occurs when an attacker tampers with the packet headers of a data transmission so that it appears to come from a device on the network. The attacker then hijacks the response to the spoofed packet so that it’s sent back to the attacker, rather than the original device. This type of spoofing can be mitigated with network firewalls that perform deep packet inspection or by using tools to detect inconsistencies between the spoofed device and existing devices on a network.
The best way to prevent spoofing attacks is for end-users to be wary of any unexpected messages or calls, and trust their instincts. If they think something is shady, it probably is. For instance, users should avoid websites with shady URLs, and always check the address bar to see whether it begins with https:// (as opposed to http://) and for a lock icon. They should also make sure to only use a password manager that doesn’t automatically fill in login credentials on untrustworthy websites.