Selling iPhone 4 - MicroSim question

[spartanrob]

Since the 4S came with a new microsim, is there any harm leaving the original one in the 4 when I sell it?

 

[Intell]

Your SIM still contains personal information, even when it isn't activated. You should not leave it in the phone when selling the phone. The buyer can get a new SIM at a carrier of choice.

 

[spartanrob]

So I should let any potential buyer know that then need to go to ATT and get a micro sim

 

[Intell]

Yes.