Fewer than one in five companies is currently using network segmentation to slow intruders from moving around its network. The difficulty of the project has dissuaded many IT professionals, a survey finds. The average time to deploy and tune a firewall is one to three months, and it takes an average of one to two weeks to accommodate a new application. Software-defined networking is one way that companies can quickly segment networks as well as add responsive security features such as deceptive network architectures that can waste attackers’ time.”]