Cyber-attacks highlight growing vulnerability of us all | Letters

Who’s to blame for the ransomware attacks? Readers suggest Microsoft, Whitehall and the NSA among othersIn 2010, an agreement between Microsoft and the NHS to provide almost all Microsoft software to the service for one single fee and to keep the software updated with new releases was not renewed by the incoming coalition government (NHS targeted in global cyber-attack, 14 May). It cost a few billion, but the budget for it was there, and it saved many billions more. Microsoft also liked it