Some people only have one computer and that must suck. Fortunately I have multiple so I can use some of my alt-miners to do this safely.
People with only one computer can still securely isolate different wallets & apps from each other by using privilege separation. For example on Linux, run bitcoin/namecoin/i0coin/etc under separate user accounts, and chmod 700 their home directories.
thanks for the advice, as I have one computer, I did not know how to securely isolate wallets. Now I will use your advice
