Recently I was visiting one of my friends who writes code, he brought up this topic to me recently saying that it seems like old wallets are being hacked into, that hackers have targeted older BTC addresses because of their vulnerabilities and lack of security.
I thought that was very interesting and since he is a tech savvy coder his use of relevant jargon and explanation was so good, I just wish I remembered exactly how he put it. I did a quick search though and found this relevant article:
https://cryptoslate.com/old-wallets-activate-sparking-fears-of-mass-hack-targeting-bitcoin-veterans/Could it be that folks have figured out how to crack the codes on these old private keys? IF so, they are seeing some massive pay days, EH?