These are new accusations to create a legal background to ban Cross-chain exchange and a way for decentralized one, or at least restrict them and arrest their developers, as they are the prevailing means of laundering crypto-assets.
Cross-chain platforms are centralized platforms that do not require identity and therefore it is easy for governments to set regulatory frameworks on them and thus prevent tokens and all investments related to them. If these platforms do not become decentralized (I cannot find an open source way to do this), it is a matter of time before issuing legal legislation against them.
If that is the case then maybe these new legal background by regulators are going to used against this cross-chain crimes as the numbers are really staggering.
I am not surprised, it is cybercrime adapting to the new possibilities that the growing cryptocurrency market offers. Twenty years ago there were no cryptocurrencies and the illicit money was laundered through corporate schemes in tax havens. For medium amounts, they could be laundered with a business where cash payment was the most common, which was the traditional method, already used in Al Capone's time, for example, at a time when credit cards did not exist.
Yes, Swiss Banks are the haven for criminals back then in the 70's-2000's as they can hide behind the bank secrecy law until US forces them to open the bank accounts for Americans.
I mentioned this several times, that when traces of a crime remain on the blockchain, any researcher can then find the criminals and transfer the data to the police. Blockchain is not the best way to hide traces of crimes, but in any new trend there will always be a lot of fraud and hacking, because a perfect system cannot be built the first time.
Yes, everything is traceable in the blockchain, and that's why this criminals are trying to get around with it, hiding thru various methods. Initially it was mixer, then authorities goes and shut down some of them. And now criminals learn another method by cross-chain and it reaches record numbers.
For sure if ever this criminals will be caught and cannot hide anymore from this tactic, there will be more far advance and sophisticated method that will come up in the future.