sometimes I connect to wifi outside my home in office , restaurants and friends house. I want to know if wifi administrator can see the exact data my android phone communicates?
I am only concerned about gmail and skype apps to be precise. I believe Gmail uses some sort of encoding before data transmission making it hard to read even if administrator see the data transmission.
Please correct me if I am wrong. Also if you can tell me some security measures I can take to protect the privacy.