I just watched the documentary Trust No One: The Hunt for the Crypto King on Netflix. In one scene they use the number for the 'cold vault' and trace the money, well specifically they find out they have no money on hand in the vault. But as part of it they talk, briefly, about how you can - if you know wallet numbers - track money.

So I was thinking that crypto is used a fair bit for CP and other online crimes, doesn't that mean the FBI is most likely sitting there with an ever growing list of wallets that get flagged and the blockchains are permanent records of payment to criminals?

I've always be sus about crypto because of the link to crime but if all transactions are recorded, doesn't that break the anonymity and people will get busted?