Large organisations are finding it increasingly difficult to perform even the most basic actions required to maintain the security of their IT infrastructure. For example, the London Metropolitan Police is still running 27,000 PCs on Windows XP, an obsolete legacy operating system that Microsoft hasnt officially supported since 2014. 90% of data breaches result from a software vulnerability that is at least a year old and for which a security update is freely available. The threat posed by malware has grown exponentially and its simply not feasible to lock down access to IT systems in the way it once was.”]
Source: https://informationsecuritybuzz.com/articles/technology-malware-evolve-security-lag-behind/