Chinese Government runs a MITM attack against Microsoft Outlook

January 25th, 2015

“The Outlook email service was not reachable in China over the weekend and according the to experts at the GreatFire organization, Chinese Government run a man-in-the-middle attack, exactly as it has already done in the past against many other web services. In December, the Gmail service has been blocked in China and also in that circumstance, the experts speculated that the Chinese Government used the China’s Great Firewall to interfere with the email service.


In a fist time, Chinese users suffered an anomalous outage for the Outlook service, the IMAP and SMTP protocols were not working on both on desktop and mobile email clients on Jan 17. GreatFire notes that the MitM attack only affected the email clients while web services and were not impacted.”


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