“To avoid bugging, keep your phone in your control as much as possible. If you are forgetful, try duct taping it to your hand. ”

http://www.howtovanish.com/2010/01/cell-phone-security-mobile-phone-taps/

“Actually, the problem revolves around the entire concept of the "Smart Phone". First off, most people DON'T NEED ONE. They're nice, and convenient, I grant you, but they're TOO SMART. You don't NEED the equivalent of a 5 year old desktop computer in your pocket to make a few calls. You don't NEED internet access in your phone. You don't NEED the $100+ per month charges. You don't NEED a device with the ability to monitor your every move and word. You don't NEED the $2500+ total cost of that fancy phone over the 2 year contract period. I would suggest we return to the old, reliable feature-phone, perhaps with a QWERTY keyboard for texting, and maybe a camera, but with a removable battery. None of us, except maybe some corporate customers, have any real need for a "smart phone" in any form.”

https://www.techdirt.com/articles/20130723/12395923907/even-powering-down-cell-phone-cant-keep-nsa-tracking-its-location.shtml#c456