Quote from: rebuilder on December 07, 2015, 11:19:32 PM

Quote from: ed_war_d on December 07, 2015, 10:11:54 AM

I had the 1st wallet. Then when the sum of bitcoins was pretty big I've made the new one (about 3 years ago). I've transfered the bitcoins to the new wallet 1 time and keep them there. For the new bitcoins I've used the new wallet.

Just to be clear:

The new wallet is the one that has this address in it:
https://blockchain.info/address/15ESHhWuNfqMEQPXWexGb9kK1J53brWksL
correct?

And you created this wallet 3 years ago. You did not transfer anything to this new wallet until November 4th, 2014. Correct?

If that's the case, it seems your keys have been compromised some time over the last 3 years, and the thief likely just waited for something to be transferred to an address controlled by those keys. This would, to me, suggest an automated system to check a number of compromised keys for new BTC, which in turn would suggest a relatively widespread virus of some sort being how your keys got stolen.

In this case nobody can be sure his bitcoins are safe.
Cool wallet on the paper is a good thing, but...
You make new wallet and write it on paper and put 1 btc into. After 1 year you will need put another 1 btc there, but you will not shure has your wallet the 1st 1 btc or not for some reason.
You'll need to synchronize core to be sure the your wallet has the 1st 1 btc.
If you are not sure it is a not very good idea to put your other 1 btc