Dr Harjinder Lallie, Associate Professor (Cyber Security) at WMG at the University of Warwick explain: “The London cyber attack demonstrates the importance of cyber defences and proper back up plans, especially in organisations where it really can be a matter of life or death, like the NHS. With hospitals now having to resort to paper records in the wake of the attack, we must seriously weigh up the costs of defending ourselves versus the cost of doing nothing and accepting these attacks from hostile actors.

“With these attacks often able to manipulate our data as well as hold it to ransom, our most private data – such as our health records – must be protected more closely. To leave the medical information of patients out there without proper cyber security defence is the equivalent of leaving the files on a park bench or on a train. We must invest more in our own defences if we don’t want to see these types of attacks repeated time and again.”