Servers were reportedly compromised in other European countries such as France and Finland as well as the United States and Canada.
Stronger digital security and offline backups as well as collectively targeting the laundering of the attacks' proceeds were identified as crucial steps in the fight at the summit.
Colonial Pipeline says a cyberattack forced it to temporarily halt all operations on a major pipeline that delivers roughly 45 percent of all fuel consumed on the US East Coast.
Health care organisations are especially susceptible to schemes such as ransomware because "they are less likely to shut down their systems by refusing to pay," according to Tom Pendergast, member of a security and privacy training firm.
Popular accounting software firm M.E.Doc is suspected of spreading Petya virus via updates with "backdoor vulnerabilities".
GoldenEye or Petya hit more than 60 countries, disrupting ports from Mumbai to Los Angeles and halting work at a chocolate factory in Australia. Experts say hack aim is deadlier than collecting ransom.
A wave of cyber attacks over the past few months have exposed the inability of governments and corporations to effectively confront cyber attacks. It might only be a matter of time until people's lives are put at risk.
Researchers say the latest cyberattack is linked to ransomware which hit the world last month. Russia and Ukraine were the worst affected while operations at major companies were also disrupted in Europe and India.
Asian companies, governments report minor disruptions from WannaCry ransomware as Monday started after brief respite over the weekend. The cyber attack locked up more than 200,000 computers in more than 150 countries.
European Union's policing agency says the number of victims of the "ransomware" attack could dramatically increase with the start of the new work week.
Home Secretary Amber Rudd says 97 percent of the UK's health service terminals were now "working as normal" after Friday's ransomware attack.
The extortion attacks, which locked computers and held users' files for ransom, is believed to be the biggest of its kind ever recorded.
Subscribe to our Youtube channel for all latest in-depth, on the ground reporting from around the world.
Copyright © 2023 TRT World.