The next generation of cyber attacks has changed radically and are targeted to get something valuable—sensitive, personal information, intellectual property, authentication credentials, and insider information. Each attack is multi-staged with steps to get in, to call back from the compromised network, to spread laterally, and to get valuables out. It is not enough to simply put up a firewall or intrusion prevention system because legacy solutions cannot stop advanced persistent threat (APT) attacks. There is no single, static, technical answer.