Outlook email taken down in China, as Gmail block continues

Monitoring site claims that outage was the work of the government body that censors the internet

Andrew Griffin
Tuesday 20 January 2015 05:31 EST
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A chinese man plays online games at an internet cafe in Beijing
A chinese man plays online games at an internet cafe in Beijing (AFP)

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Microsoft’s Outlook email service seems to have been taken offline over the weekend, weeks after Google’s Gmail was taken offline.

Outlook appears to have been taking down using a “man-in-the-middle” attack, according to Greatfire.org, the Chinese internet monitoring group. Such attacks allow those carrying them out to listen in on emails — users are usually alerted to the fact by a pop-up, but not always, and stopping people doing so will mean not using email at all.

The attack only worked for those viewing outlook through desktop clients, and web interfaces like Outlook.com remain online.

The attack comes weeks after Gmail was taken offline at Christmas. Though service seemed initially to have resumed, it is still offline for many people and Google’s transparency report shows that traffic from China is vastly reduced.

Though the Outlook hack seems to have been fixed and so only lasted for a day, it was potentially more damaging since it meant that whoever was carrying it out could read emails, rather than taking the service offline.

Greatfire.org said that it suspected that the Cyberspace Administration of China, which mains the “great firewall” was responsible for the attack “or have willingly allowed it to happen”.

The site wrote: “If our accusation is correct, this new attack signals that the Chinese authorities are intent on further cracking down on communication methods that they cannot readily monitor.”

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