If you do not want to display ads, the AdBlock option can be activated at any time. The UC Free Wifi function makes it possible to create a virtual access point, very convenient to share a connection from your phone. UC Browser is also compatible with most extensions developed for Chrome. Chrome users will not be distressed because the interface looks in all respects to this browser. The choice of wallpapers is impressive with multiple categories. All graphic elements will be modified, offering you real customization. It has, therefore, features adapted to this type of device such as the ability to quickly change the theme in one click. UC Browser was first designed for mobile devices. You can surf the internet and watch videos with ease. "At the time of the writing," Cirlig wrote in his blog post, "these issues have not been fixed even after contacting Alibaba, with user browsing/location data being sent to UCWeb's servers in real time.UC Browser is an internet browser that works on both mobile and desktop devices. The Google Play store listed the main UC browser plus "mini" and "turbo" versions, all in English. This can be done using a number of methods, but that's outside the scope of this piece.]Īs of Wednesday (June 2), the English-language version of the UC browser was gone from Apple's App Store in most countries, but the Chinese-language one remained. To read the data transmitted by the iOS version of the UC browser, you'd have to break or evade TLS, the encryption standard used by most web browsers. Cirlig and Agnese had run their tests using their own HTTPS certificate, which meant they could easily decrypt HTTPS data. [ Correction : Agnese reached out to us after this story was published to point out that the data being transmitted by the iOS version of the UC browser was indeed encrypted because it went out over a standard secure browser-to-server HTTPS connection. On Android, the data was both compressed and encrypted, although Cirlig and Agnese found a decryption key buried in the UC browser app's source code. On iOS, the personal data was compressed but not encrypted before it was transmitted to the Chinese servers, meaning anyone who intercepted the traffic could read it. The pair discovered that the UC browser was a bit "better" about how it handled this sensitive information on Android than it was on iOS, regardless of the fact that this sort of data collection shouldn't be happening at all. Here's a YouTube video of data being harvested from the UC browser running in Incognito Mode from an emulated phone. With all this information, users can be tracked and monitored both physically and across the internet, a far cry from the "perfectly private and secret" experience promised.įorbes had Cirlig and Agnese's findings verified by Andrew Tierney, a well-regarded British security reseacher. It also sends a unique proprietary device ID that seems to be specific to the UC browser, which Cirlig noted "could easily fingerprint users and tie them back to their real personas." Working with Argentina-based researcher Nicolas Agnese, Cirlig found that the UC browser hoovers up a phone's network-interface ID (MAC address), phone hardware ID (IMEI), phone serial number, OS version, phone type, browsing history, search queries, IP address and time zone, sending it all to Chinese-registered servers even when in incognito mode on iOS or Android. Documents leaked by former NSA contractor Edward Snowden showed that Canadian intelligence found in the early 2010's that the UC browser leaked a lot of sensitive data, behavior that continued until at least 2015. However, the browser has long been regarded as rather snoopy. Forbes' Thomas Brewster noted that UC had many users in India until that country banned dozens of Chinese apps in mid-2020 following a deadly border skirmish between the two nations. A 2018 Wall Street Journal piece said UC was "dethroning Google in Asia" outside China.
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