This was Prof Keith Marin’s second talk to us and on this occasion he gave us “An Impossibly Short Introduction to Cyber Security”.  Rather than talking in generalities, he used a “case study” focussing on the recent cyber attack on M&S.   During his interactive talk, we learnt about the importance to businesses of under the potential threats and opportunities for the “bad guys” to cause mayhem and serious damage to the financial stability of the organisations attacked.   The importance of system monitoring and keeping security was pointed out.  We also learnt about the importance of two stage password verification - a potential lesson for us all!