Most of the time it is witched off and in a drawer at home. When going on a long journey it is in the car and switched off. At other times - in use - it is either in the house or in the car with the latter stationary and the engine off.

Added to that it is a Pay as you go 'phone with little on it!!

Considering that I am still using my favourite mobile called a Motorola Savvy/Talkabout/T180, which was purchased in January 2001 from Link with a Cellnet connection, then security is the least of my worries :O)

And to top it all, I can still obtain replacement batteries rather easy for this model, not like some more recent mobile telephone purchases that I have made.

I also use the four digit pin security code on my iphone, I also have the "find my iphone" app installed so that if it is lost or stolen I can track it, lock it or wipe it's contents.

I think this type of security is necessary particularly for smart phones which can have online banking and credit card apps installed.

"Wife's phone even older (Nokia 6110) has suddenly become more valuable appears to now be "retro" as far as the kids are concerned. ???"

There must be a limit to how cool retro can be...

With a touch screen phone it's only sensible to have some kind of lock to prevent mis-dialling whilst in your pocket.

My main security measure is to keep it in my trouser pocket rather than on the table when in the pub...