security concern

[greenlogic]

I have a stock Samsung Vibrant, and recently whenever I turn on flight mode it says that internet sharing has been disabled.

I've never set-up tethering which is why I'm concerned. Is it possible for someone to remotely tether an android device?

Firmware: 2.1-update1
Baseband: T959UVJFD
Kernel: 2.6.29
Eclair