Earlier this year, the WannaCry ransomeware attack took control of computers in 40 NHS trusts, blocking access to the data held on them.

This wasn’t the first time that NHS computers had been infected by malware, but it brought the danger of cyber attack into the consciousness of doctors and patients.

In this podcast we hear from two people who have been thinking hard about cyber security in the NHS - James Kinross, a surgeon and lecturer at Imperial College London, and Chris Hankin, director of Imperial’s Institute for Security Science and Technology.

Read the analysis: