In this special episode of the TechCentral podcast, SensePost chief technology officer Dominic White, dialling in from London over Skype, chats to TechCentral editor Duncan McLeod about the WannaCry ransomware incident that has grabbed headlines around the world since late last week. White talks about who should be blamed for WannaCry (if anyone - and does it help to point fingers?); the role of Microsoft and the US National Security Agency; whether it would be smart (or undesirable) to force companies and governments to disclose vulnerabilities they find in software through legislation; and what people should be doing to protect themselves from attack.