PACKET SNIFFING

This is the act of capturing the packets of data flowing across the network.This is processed out by hackers who gather information in the offensive way.It is also possible to capture everything like passwords,IP addresses ,protocols etc.Sniffer is a tool to avoid this.Packet sniffers always look on to every action of the user.That is they watch everything,and log the traffic.Today's network are very much developed. They started affording many new techniques.Actually networks contain built-in sniffing tools and the modules.This is very difficult task to do,but it can be done.