An anonymous reader shares a report: Security researchers from Adguard have issued a warning that the popular GO Keyboard app is spying on users. Produced by Chinese developers GOMO Dev Team, GO Keyboard was found to be transmitting personal information about users back to remote servers, as well as "using a prohibited technique to download dangerous executable code." Adguard made the discovery while conducting research into the traffic consumption and unwanted behavior of various Android keyboards. The AdGuard for Android app makes it possible to see exactly what traffic an app is generating, and it showed that GO Keyboard was making worrying connections, making use of trackers, and sharing personal information. Adguard notes that there are two versions of the keyboard in Google Play which it claims have more than 200 million users in total.