ARP Cache Poisoning

ARP cache poisoning is a type of cyber attack that targets a network's address resolution protocol (ARP). In simple terms, ARP helps devices on a local network find each other by linking IP addresses to MAC addresses (unique hardware identifiers). An attacker sends false information to a device's ARP cache, tricking it into associating the attacker's device with the IP address of a legitimate device. This can allow the attacker to intercept, modify, or block communications between devices, leading to security breaches and data theft. Protecting against ARP cache poisoning is essential for maintaining network security.