A smurf attack is a denial-of-service exploit that spoofs ICMP ping messages to flood a system. This "slowing down"...
of the network can consist of hundreds of PCs sending an echo reply to each packet, and this can shut the network down completely.
At one time smurf attacks were a serious vulnerability in networks, as they affected not only the target network, but upstream connections and other connected networks suffered negative effects. Nowadays a smurf attack is not common because it's very easy to secure a network against it by turning off the forwarding of directed broadcasts on all router ports.
Related Q&A from Russell Dean Vines
While some SMBs are not securing their mobile broadband, there is good reason to do so, even if a customer has only a small amount of data to protect.continue reading
Streaming video and audio sites are frequently visited on both home computers and work computers. Learn about streaming video security risks and what...continue reading
The accidental download of a malicious file can ruin your client's computer. Learn what steps to take to ensure effective spyware removal.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.