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By Frank Smyth/CPJ Senior Adviser for Journalist Security
With a chapter on Technology Security by CPJ Staff Technologist Tom Lowenthal and Danny O’Brien
About the Authors   |   Acknowledgments



Introduction: With CPJ Senior Journalist Security Adviser Frank Smyth




Blog Internet, Security

When it comes to Great Firewall attacks, HTTPS is greatest defense

An Internet café in Beijing. Attacks that appear to have been mediated by China's censors against GitHub, a software site vital to Chinese developers, demonstrate the importance of HTTPS in protecting against censorship. (Reuters/Jason Lee)

The power of HTTPS to protect has been brought into sharp focus by a series of attacks against software collaboration site GitHub. These attacks consistently failed because of the site's universal use of HTTPS. Most recently, GitHub reported a blistering series of distributed denial of service attacks in March, which it believes were an attempt to persuade the site to remove certain content. Security researchers including Robert Graham and Insight Labs analyzed the latest GitHub attack, concluding that it appears to have been mediated by China's "great firewall" censorship system.


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