It's suspected that computer forensics managed to recover the private key of an unencrypted wallet from his disk. The sequence of events would be: He previously used an unencrypted wallet. Then he encrypted it and deleted his old wallet.dat. Then he forgot to zero out his "deleted files" area of his filesystem, so the old wallet.dat was recoverable via forensics.
Comments
It's suspected that computer forensics managed to recover the private key of an unencrypted wallet from his disk. The sequence of events would be: He previously used an unencrypted wallet. Then he encrypted it and deleted his old wallet.dat. Then he forgot to zero out his "deleted files" area of his filesystem, so the old wallet.dat was recoverable via forensics.
So obvious, yet, easy to forget
This is a big gaping hole in using GPG for example
It either prints the content (if it's a text file this is ok), or you have to save it to be useful.
And then you erase it and think it's enough.