Indeed, the same innovations that power crypto-assets can also help us regulate them.

To put it another way, we can fight fire with fire.

Regulatory technology and supervisory technology can help shut criminals out of the crypto world. More broadly, we are seeing crypto-asset exchanges in some countries that are subject to know-your-customer requirements.

https://blogs.imf.org/2018/03/13/addressing-the-dark-side-of-the-crypto-world/