Worldwide spending on security is expected to touch the $60 billion mark in 2012, up 8.4 percent from $55 billion in the previous year. Security infrastructure market consists of software, services and network security appliances used to secure enterprise and consumer IT equipment. IT outsourcing (managed security services), secure Web gateway (appliance), and security information and event management (SIEM) are the fastest-growing security segments, Gartner said. It was also noted that demand for cloud-based security is affecting a number of key security markets.”]