Today’s corporate networks are more important to business objectives than ever before. Consequently, greater amounts of sensitive data traverse both wired and wireless networks. This plethora of valuable data in today's enterprise attracts an increasing number of hackers and malware applications. However, the inherent connected intelligence and distributed nature that makes the network a treasure trove for cybercriminals can also empower the network to be a proactive security tool. Through traffic visibility, and segmentation, today's enterprise network can prove itself to be a sensor and enforcer for security.