About UC Browser
UC Browser is a free mobile browser developed by the Chinese mobile Internet company UCWeb and is owned by Alibaba Group of China. Originally launched in April 2004 as a J2ME-only application, it is available on a number of platforms including Android, BlackBerry, iOS, Java ME, Symbian and Windows Phone
Features
The browser uses cloud acceleration and data compression technology. UC Browser's servers act as a proxy which compresses and renders the data of web pages before sending it to users. This process helps to load web contents faster. The browser can adapt to some network environments and support multi-file format downloading. In addition, UC Browser has HTML5 web app and cloud syncing features.
UC Browser is available on several smartphone and feature phone platforms, but Android mobile operating system represents the largest user base for the company, with 300 million of its 500 million total
UC+: HTML5, WebApp and add-ons
In July 2013, UCWeb announced the UC+ Open Platform. The platform consists of a WebApp store, an add-on platform and an Application Bookmark Platform. It went live with the launch of UC Browser v9.2 for Android.
Developers can use an SDK provided to create programs that can be called on in different usage scenarios. Users can download them from the browser's add-on panel to get a more personalized internet browsing experience, like the sharing to SNS, webpage translation, augmented reality, voice control, etc. The Application Bookmark Platform allows partner websites to put up a QR code on UC Browser for users to scan the code and add the webpage to their bookmarks. The UC WebApp Center was one of the first for mobile WebApps in China.
Security
In May 2015, a research organization named the Citizen Lab published news about leaking of privacy details of several UC browser users. The organization tested two versions of UC Browser, one in English and the other in Chinese. In May 2015, documents leaked by National Security Agency (NSA) whistleblower Edward Snowden revealed that the Australian Signals Directorate (ASD) had identified UC Browsers as a security weak point. Its widespread use in China, India and Indonesia made it particularly attractive to ASD. The documents revealed that in cooperation with its Five Eyes partners, ASD hacked the UC Browser and infected smartphones with spyware. The ASD declined to comment in relation to the revelations.
In 2016, the Citizen Lab reported about major security and privacy issues in the English language and Chinese language editions of the Android version of UC Browser. The report criticized the transmission of personally identifiable information to various commercial analytics tools and the transmission of user search queries without encryption. They also managed to bypass the encryption of UC Browser accusing them of using non-effective encryption systems in transmitting personally identifiable subscriber data, mobile device identifiers and user geo-location data. The report also however pointed out that the English version of UC Browser "seems to implement encryption consistently" and was relatively more robust.
In May—June 2016, Alibaba group provided the Citizen Lab with updated versions of UC browser in order to verify their security fixes to these issues. The subsequent update published by the Citizen Lab indicated that "most if not all of the previously identified data leaks and privacy breaches had been fixed" in UC browser for Windows.


















































