Is it safe create a a peper wallet from bitcoin-qt n dumpprivatekey?
if I sweep one private all other ones that I have in cold storage will be vunerable because they are derived some way from the one spent?
Regards,
Slave
If you are asking if paper wallets are safe ways to move your balance, sure. Over a long period they are technically fine too, but you have to care for that code and make sure it stays readable and something like a USB drive can take a good bit more abuse than a paper and remain useable.