中国的网络审查

2011年以来,GreatFire.org一直关注中国的网络审查,带给您中国防火长城的最新资讯。

最新统计

监测 1005 Alexa Top 1000 Domains107 个在中国被屏蔽
监测 33278 Domains3794 个在中国被屏蔽
监测 15066 Google Searches14461 个在中国被屏蔽
监测 743 Google Sites560 个在中国被屏蔽
监测 13221 HTTPS2583 个在中国被屏蔽
监测 16221 IP Addresses5631 个在中国被屏蔽
监测 176103 URLs49070 个在中国被屏蔽
监测 23708 Weibo Searches426 个在中国被屏蔽
监测 1170 Wikipedia Pages223 个在中国被屏蔽

近期新闻

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星期二, 3月 31, 2015

Chinese authorities compromise millions in cyberattacks

The Great Firewall has switched from being a passive, inbound filter to being an active and aggressive outbound one. This is a frightening development and the implications of this action extend beyond control of information on the internet. In one quick movement, the authorities have shifted from enforcing strict censorship in China to enforcing Chinese censorship on internet users worldwide.
Twitter: GreatFireChina RT @RTKcn: RT @kgen: 外叫部否认攻击 Github 了,其实这种掩饰毫无意义。因为能在中国网络出入口处,劫持百度的JS脚本的,除了墙,还有谁呢。
可是中国说自己没有墙的,要是承认了这次攻击,就等于承认了墙的存在。
所以撒了一个谎,就要用另一个谎来圆场,发炎人… retweet

星期一, 3月 30, 2015

Twitter: GreatFireChina RT @chenshaoju: @hnjhj @m13253 这个 wxtsb 是站长统计(cnzz)下的某个东西,我已经写邮件给了他们,但是没有回复。 http://t.co/bvvcus7EJg retweet
Twitter: GreatFireChina RT @lvv2com: “@lepture: 每次发生什么网站被封就会有一大群国人跑过去让别人删内容,仿佛接到了省政府新闻办的删帖令。你们什么时候才能醒悟,作恶的是你们政府,而不是几篇文章几个项目。而且你 http://t.co/Kd34wwaD1u http://t.co/retweet
Twitter: GreatFireChina RT @bitinn: 在Github被DDoS,使用困难的这段时间,我唯一能说的,就是请大家不要放弃这个站点:继续用这个站点,更多用这个站点。 倒不是因为我对Github有多大感情,而是我看到太多案例:国内出现了恰当的替代品,国外原型就被封掉。 Google之所以封得这么… retweet
Twitter: GreatFireChina RT @lvv2com: GitHub 被攻击,网络墙国的程序员说 @GreatFireChina 在作恶,来自自由世界的程序员说 CNGov 在作恶,同一个计算机世界,不同的程序员。 via @oiax http://t.co/sGg6RJLWWh retweet

星期五, 3月 27, 2015

CNNIC censored Google and Mozilla’s posts about CNNIC CA

This week, Google found unauthorized digital certificates for several Google domains, the root CA of which is CNNIC. Google and Mozilla both publicly disclosed this security incident and published blog posts(Google, Mozilla). However, Chinese translations of Google’s and Mozilla's blog posts were censored on the Chinese Internet.

  • William Long is a prominent Chinese blogger on IT and tech. He translated Google’s security post without adding any personal opinions. The Chinese blogpost ranked #1 when searching CNNIC MITM in Chinese on Google and Baidu. He tweeted that he received a phone call from propaganda department demanding the post to be removed immediately. The post http://www.williamlong.info/archives/4183.html was deleted. Google cache is still available.

星期三, 3月 25, 2015

Evidence shows CNNIC and CAC behind MITM attacks

Since 2013, we have repeatedly called on major software vendors to revoke CNNIC-issued certificates. Most notably, we raised this issue when we reported on the Cyberspace Administration of China’s (CAC) man-in-the-middle (MITM) attacks on Google, Microsoft’s Outlook, Apple, Yahoo and Github. Mainstream media have reported about these security vulnerabilities before and on March 24, Ars Technica reported on Google’s announcement that they have definitive evidence that CNNIC (China Internet Network Information Center) was behind a new MITM attack on Google.

From our October, 2014 blog post:

星期四, 3月 19, 2015

We are under attack

We are under attack and we need help.

Likely in response to a recent story in the Wall Street Journal (WSJ), we’ve experienced our first ever distributed denial of service (DDoS) attack. This tactic is used to bring down web pages by flooding them with lots of requests - at the time of writing they number 2.6 billion requests per hour. Websites are not equipped to handle that kind of volume so they usually “break” and go offline.

This kind of attack is aggressive and is an exhibition of censorship by brute force. Attackers resort to tactics like this when they are left with no other options.

We are not equipped to handle a DDoS attack of this magnitude and we need help. Some background:

  • The attack started on March 17 and we are receiving up to 2.6 billion requests per hour which is about 2500 times more than normal levels.

星期四, 3月 12, 2015

Collateral Freedom and the not-so-Great Firewall

Recognizing that the authorities have been hesitant to crackdown on our method of circumvention, we have accelerated our expansion of the development of collateral freedom, in three key areas.

星期一, 1月 26, 2015

给鲁炜和中国网信办的公开信

2015年1月26日

中国,北京。

鲁炜先生:

在2015年1月22日, 您领导的中国网信办对我们发表的Outlook在中国遭中间人攻击的文章进行了公开回应。 在中国网信办的公开回应中,您的同事姜军说我们的指责是“无端臆测,纯属境外反华势力的造谣和污蔑“。

我们GreatFire.org成员对中国网信办的评论非常愤怒,我们在本公开信中逐条驳斥。

我们没有轻易指责中国网信办。我们收集了大量数据来支持我们的结论。很多报告都支持了我们的分析,包括了截图许多中国网民的报告和其他技术人员的独立分析

我们之前报道过对iCloud,雅虎,微软和谷歌进行的中间人攻击,每个公司都确认了中间人攻击的真实性。我们还邀请了其他技术人员对攻击数据进行了独立分析。 你可以阅读对每次攻击的独立分析: OutlookiCloud谷歌雅虎Github 。 每个分析结论都类似:

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