US cyber policy to blame for virus attacks

Editor's note: The massive global cyberattack that began on Friday has once again set off alarm bells for global internet security. The virus called "WannaCry" used the EternalBlue developed by the United States' National Security Agency that was stolen by the hackers. What measures should China take for its cyber security? And what should individuals do for self-protection? Two experts share their views with China Daily's Zhang Zhouxiang on the subject:

Yan Hanbing, a researcher in cyber security at the National Computer Network Emergency Response Technical Team/Coordination Center of China

Update operating system on time to escape attack