Re: I put zero fee & it's still unconfirmed after 66 solved blocks
I didn't even touch my blockchain.info wallet today & I get an email just now saying a transaction was sent to lucky bit blue! 
I also have the double spend warning! All I did was wait patiently for this transaction to confirm: a1faf7b6db5bb4ef4a39911ca54152df57758e128cd19fbf16178aea59e06c87 & then automatically without asking me blockchain.info tried to send to luckybit blue again! here: b1346f1ab63dc90cb592028e1f7283f02b54e46afb35b9145ad91ac2a55877be also there was no fee just like before, I did not send this transaction! Somehow it resent my transaction that never got confirmed a few days ago automatically, WTF IS GOING ON!!
I also have the double spend warning! All I did was wait patiently for this transaction to confirm: a1faf7b6db5bb4ef4a39911ca54152df57758e128cd19fbf16178aea59e06c87 & then automatically without asking me blockchain.info tried to send to luckybit blue again! here: b1346f1ab63dc90cb592028e1f7283f02b54e46afb35b9145ad91ac2a55877be also there was no fee just like before, I did not send this transaction! Somehow it resent my transaction that never got confirmed a few days ago automatically, WTF IS GOING ON!!
Looks like someone has rebroadcast your original transaction to the network just now...
No idea who did that and why he did that, but the good news is others won't be able to alter the recipient address and steal your bitcoin.