“想哭”病毒席卷全球，你“哭”了吗？

Intranets on campus, governmental organizations, financial organizations and gas stations in one hundred and fifty countries have fallen victim to a ransomware named WannaCry.The spread of the virus slowed on Monday as no major organizations reported to have been impacted by the global cyberattack. The hackers behind the global cyberattack are still unidentified.What is the virus? How can we protect our computers?