Discuss the Great Cannon. Who developed it, how has it been used, and how does it differ from the Great Firewall?

What will be an ideal response?

The Great Cannon is the nickname given by researchers to a tool believed to be developed by China that was used to launch a major DDoS attack in March 2015 against the software development platform GitHub, aimed specifically at two Chinese anti-censorship projects hosted on the platform. Although originally thought to be part of the Great Firewall, which is a system developed by China that allows it to censor Internet traffic, further investigation revealed that the Great Cannon appears to be a separate distinct offensive system that is co-located with the Great Firewall. The Great Cannon enables hackers to hijack traffic to individual IP addresses and uses a man-in-the-middle attack to replace unencrypted content between a Web server and the user with malicious Javascript that would load the two GitHub project pages every two seconds.