Cyber chaos keeps spreading worldwide

In China, 18,000 IP addresses attacked, and universities among the hardest hit

TOKYO - Global cyber chaos was spreading on Monday as companies booted up computers at work following the weekend's worldwide ransomware cyberattack.

The extortion scheme created chaos in 150 countries and could wreak even greater havoc as more malicious variations appear. The initial attack, known as "WannaCry", paralyzed computers running the United Kingdom's hospital network, Germany's national railway and scores of other companies and government agencies around the world.