While everyone is trying to brute force this puzzle. Some people have already hacked Bitcoin itself, or rather secp, otherwise some transactions cannot be explained. Of course, the one who hacks the system itself will not say anything about it, otherwise his life will be in danger, a lot of money is kept by influential people and also the black market.
One thing is certain, old addresses from 2009-2010 have been active for some time now. And transfers to exchanges and other addresses are made from them. It is logical that if you have found a vulnerability, it is better to use old wallets, because in this case, few will be able to confirm the legitimacy of these coins, because they have long lost the keys.