A picture illustration shows icons of WeChat and Weibo app in Beijing, December 5, 2013. An unprecedented Nov. 14 leak of China's Communist Party reform plans fuelled China's biggest stock market ... more 
A picture illustration shows icons of WeChat and Weibo app in Beijing, December 5, 2013. An unprecedented Nov. 14 leak of China's Communist Party reform plans fuelled China's biggest stock market rally in two months as it spread on microblogs and passed from smartphone to smartphone on WeChat, a three-year-old social messaging app developed by Tencent Holdings Ltd. WeChat, or Weixin in Chinese, meaning "micromessage", leapt from 121 million global monthly active users at the end of September 2012 to 272 million in just a year. It has quickly become the news source of choice for savvy mobile users in China, where a small army of censors scrub the country's Internet of politically sensitive news and "harmful" speech. Unlike popular microblogging services such as Sina Corp's Sina Weibo, where messages can reach millions of people in minutes, WeChat allows users to communicate in small, private circles of friends, and send text and voice messages for free - a big part of its success. Weibo has been particularly singled-out in the ongoing crackdown on "rumour-mongering" by China's stability-obsessed government, which views public protest as a threat to its authority. But WeChat has not escaped the government's attention, and its explosive growth means it is attracting more scrutiny than ever from the authorities. The Chinese characters above reads "China Mobile". Picture taken December 5, 2013. REUTERS/Petar Kujundzic (CHINA - Tags: POLITICS BUSINESS TELECOMS) less 
1 / 25
Reuters | Photo By PETAR KUJUNDZIC / REUTERS
Wed, Dec 11, 2013 4:03 PM EST