Chances are, you may be tempted to buy a used electronic device from a private seller. You may even luck out with a winner. But in this age of identity theft, here's a list of to-dos from Robert Siciliano, McAfee online security expert, so that you don't buy any unforeseen problems with your equipment:
http://www.aarp.org/money/budgeting-saving/info-01-2013/save-money-on-used-electronics.html