Organizational security is at a turning point. Enterprises preside over increasingly large, sprawling IT infrastructures dotted with countless devices, systems and applications that have windows and doors onto the wider infrastructure.

Long gone are the days when you could erect a secure perimeter around your organization and be reasonably confident of keeping most threats at bay.

In this paper we examine how the threat landscape has changed and how IT security is evolving in response. The industry is at the beginning of a fundamental shift towards the use of big data analysis and artificial intelligence in a bid to shore up organizations’ defences against increasingly numerous, stealthy and targeted attacks. We look at why and how this shift is occurring, and the steps organizations need to take to transform their own operations.