Computer hacking is one of the world’s major problems with new breaches of data and releases of ransomware occurring at an alarming rate. Cyber-crime is predicted to cost $6 trillion annually by 2021. There are no boundaries: from some of the world’s largest corporations; to critical national infrastructure; to small local enterprises and individuals. They have been hacked and trends suggest this will continue, particularly as evolving programs such as Internet of Things (IoT), smart cities and mass digitisation become the reality of life.