Researchers from Citizen Lab found that both English and Chinese versions of the browser leaked personally identifiable information—such as IMEI, IMSI, and location data—without encryption.
While its popularity has waned in banned regions, it remains a significant player in China and Indonesia, primarily focused on the Android mobile ecosystem. Summary of Pros and Cons Performance Privacy Status Pros ucbrowser
Some versions have been criticized for "patch-gap" vulnerabilities in their JavaScript engines (V8), potentially allowing attackers to steal user data. Global Bans and Market Standing Researchers from Citizen Lab found that both English