In simple terms, cyber security is the protection of internet-connected systems such as hardware, software and data from cyber threats. The practice is used by individuals and enterprises to protect against unauthorised access to data centres and other computerised systems. Although perhaps not the most glamorous part of the digital revolution, cyber security is essential for businesses to protects all categories of data from theft and damage. This includes sensitive data, personally identifiable information (PII), protected health information (PHI), personal information, intellectual property, data, and governmental and industry information systems.