My iPhone has sent/received 900MB in 15 days from "com.busuu.japanese.a" I got this information from Onavo, which 'compresses' my data.
I have never heard of Busuu until today. It is a language learning service.
My iPhone is not jailbroken. I have used Chinese wall chargers, if that was actually a real thing.
How is this happening? Is it possible to install an invisible background application? At 900MB I would expect that my phone is a botnet node or a spam server.
Please help. This is frightening.
- May 2013 - 50MB (from identifier com.busuu.japanese...)
- June 2013 - 200MB
- Half of July 2013 - 900MB