Quoted in BBC News article WannaCry: What can you do to protect your business? by Matthew Wall and Mark Ward
David Venable, vice-president of cyber-security at Masergy Communications, an IT services firm, is a former intelligence officer with the US National Security Agency.
He says: “There are a lot of practical challenges in deploying patch updates; from having unsupported operating systems [OSs] that don’t have patches available, through to the practicalities of rolling out sweeping changes across massive networks, potentially globally.
“But these aren’t new challenges – anyone running these networks should have had this solved long before now.
“This isn’t rocket science; it’s an oil change.”