“A fire is coming,” says Steve Riley, a research director at Gartner. It’s a metaphorical fire, representing the rapid change in cybersecurity that’s making traditional techniques like blacklists, whitelists, and malware signatures irrelevant. It’s now a spectrum of risk, Riley told the Gartner Security and Risk Management Summit in Sydney on Monday. Embrace the shades of grey, he said. Embrace all the colours of risk.