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A lock screen from a cyber attack warns that data files have been encrypted on a laptop computer in this arranged photo.
Another form of ransomware, called NotPetya, targeted Ukraine later that year and spread globally, affecting businesses as large as Maersk and WPP.
The U.S. and Britain have accused North Korea of being behind the WannaCry and NotPetya cyberattacks.
McAfee’s Young said that the cybersecurity industry was better equipped in 2018 to fight ransomware threats. He said that ransomware was a “constant game that we’re working against.”
“As an industry, we are stopping a lot more ransomware attacks today than we were in previous years, but the rate of growth in ransomware has been exponential,” he said.
“But we are better at spotting the attacks, we’re using behavioral tools to help us identify when a ransomware attack might be happening.”