Decrypt Weibo

***Click here to start decrypting censored weibos now***

Frequent Sina Weibo users will have no doubt seen this message before:

抱歉,此微博不适宜对外公开。如需帮助,请联系客服 .”

This message translates as:

“Sorry, this weibo is not suitable for the public. Please contact customer support for help.”  

“Not suitable for the public” is just an euphemism for censored. The weibo most frequently subjected to this kind of treatment focus on discussions of current and topical events.

Weibo users will see this message often when viewing their own timelines, conducting searches on Sina Weibo or when viewing someone’s profile page. The retweet of the censored weibo is however sometimes not censored. Weibo users are thus left with an intriguing comment but have no way to view the original weibo.

In an effort to solve this problem, Freeweibo.com is pleased to announce the launch of Decrypt Weibo which will make an effort to address this problem. Now, when Sina Weibo users stumble upon such messages, they can click the posted time on the lower left corner and obtain a link like http://www.weibo.com/2093591281/Ab4YMlFgS.

By copying and pasting the weibo URL on Decrypt Weibo Sina Weibo users can then decrypt the weibo and read the original censored message.

It takes a few seconds for FreeWeibo.com to decrypt the original message:


 

Sina Weibo users are used to seeing this “customer service” message and have accepted that censorship on Sina Weibo is occurring on a regular basis. Many users even developed the habit to save the disk to local computer first then retweet when seeing sensitive information. This is largely because they do not have any other recourse to view the censored information. With the launch of Decrypt Weibo, we have taken a big step forward in allowing Sina Weibo users the ability to read their timeline completely. No longer will Chinese internet users be left in the dark about what information has been censored on the country’s largest social network.

Given recent events surrounding Weibo big Vs practicing self-censorship, perhaps there will be less controversial content which needs to be censored. However, we also know that one message can make a big difference, and we are delighted to be able to provide Sina Weibo users with the ability to see this information whenever they want to.

***Click here to start decrypting censored weibos now***

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Mon, Jan 26, 2015

An Open Letter to Lu Wei and the Cyberspace Administration of China

January 26, 2015

Beijing, China

 

Mr. Lu Wei

Director of the Cyberspace Administration of the People’s Republic of China 中央网络安全和信息化领导小组办公室主任

Director of the State Internet Information Office 国家互联网信息办公室主任

Deputy Director of the Central Propaganda Department of the Chinese Communist Party 中共中央宣传部副部长

Cyberspace Administration of China,

Floor 1, Building 1,

Software Park, Chinese Academy of Sciences,

4 South 4th Street, Zhongguancun,

Beijing, China, 100190

 

Dear Mr. Lu,

On January 22, 2015, the Cyberspace Administration of China (CAC), which is under your direct control, wrote a response to a story we published about an MITM attack on Microsoft. In the post, your colleague, Jiang Jun, labelled our accusations as "groundless" and  "unsupported speculation, a pure slanderous act by overseas anti-China forces".

We at GreatFire.org take great offense to these comments and we will refute them in this letter.

Mon, Jan 19, 2015

Outlook grim - Chinese authorities attack Microsoft

On January 17, we received reports that Microsoft’s email system, Outlook (which was merged with Hotmail in 2013), was subjected to a man-in-the-middle (MITM) attack in China.

The following screenshot shows what happens when a Chinese user accesses Outlook via an email client (in this case, Ice-dove):

We have tested Outlook to verify the attack and have produced the same results. IMAP and SMTP for Outlook were under a MITM attack. Do note however that the web interfaces (https://outlook.com and https://login.live.com/ ) were not affected. The attack lasted for about a day and has now ceased.

This form of attack is especially devious because the warning messages users receive from their email clients are much less noticeable than the warning messages delivered to modern browsers (see screenshot at the end of this post for comparison).

(Sample error message from default iPhone mail client)

Fri, Jan 09, 2015

GFW upgrade fail - visitors to blocked sites redirected to porn

In the past, the Chinese authorities’ DNS poisoning system would direct Chinese internet users who were trying to access Facebook, Twitter and other blocked websites (without the use of a circumvention tool) to a set of fake IP addresses that are blocked in China or are non-existent. After waiting for some time, Chinese internet users would receive a timeout message if they were trying to access a blocked site.

However, with the new DNS poisoning system, in addition to those IP addresses used before, the Chinese authorities are using real IP addresses that actually host websites and are accessible in China. For example, https://support.dnspod.cn/Tools/tools/ shows that if a user tries to access Facebook from China, they might instead land on a random web page, e.g. http://178.62.75.99

Below is a screenshot by a Chinese user when he was trying to access our GreatFire.org website which was blocked in China. He was redirected to a goverment site in Korea. In essense, GFW is sending Chinese users to DDOS the Korea government's website.

One Chinese Internet user reported to us that when he tried to access Facebook in China, he was sent to a Russian website, unrelated to Facebook. Another user tweeted that he was redirected to an German adult site when he tried to access a website for a VPN.

某墙你这什么意思,DNS 污染返回给我一个德国工口站的 IP,满屏很黄很暴力弹弹弹(

— nil (@xierch) January 4, 2015

Wed, Dec 31, 2014

CNNIC leadership change coincides with blocking of Gmail

On December 26, 2014, in an announcement posted on their website, a new chairperson for CNNIC was directly appointed by the Cyberspace Administration of China. The announcement of this appointment coincided with the complete blocking of Gmail.

Cyberspace Administration of China (中央网信办) is chaired by Lu Wei, “China’s web doorkeeper”. Lu Wei is also the vice chair of the Central Propaganda Department, according to his official resume.

chair.png

This office is directly responsible for the blocking of Gmail and other websites including Facebook, Twitter and Google.

CNNIC is China’s certification authority and operates the country’s domain name registry. 

What are certificates used for?

Certificates are used primarily to verify the identity of a person or device, authenticate a service, or encrypt files. 

What is a certification authority (CA)?  

Tue, Dec 30, 2014

Gmail completely blocked in China

All Google products in China have been severely disrupted since June of this year and Chinese users have not been able to access Gmail via its web interface since the summer. However, email protocols such as IMAP, SMTP and POP3 had been accessible but are not anymore. These protocols are used in the default email app on iPhone, Microsoft Outlook on PC and many more email clients.

On December 26, GFW started to block large numbers of IP addresses used by Gmail. These IP addresses are used by IMAP/SMTP/POP3. Chinese users now have no way of accessing Gmail behind the GFW. Before, they could still send or receive emails via email clients even though Gmail's web interface was not accessible. 

Google's own traffic chart shows a sharp decline of Chinese traffic to Gmail. 

Below is a ping request to the Gmail SMTP server, which is completely inaccessible in China.

 

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