Here's a nice read on the growth of cryptocurrency vis-a-vis the attacks that seem to hinder it also:
"Since they first hit financial markets, and moreso as their popularity expands, cryptocurrencies—specifically the decentralized digital technology that underlies alt-currencies—have also been a lure for individuals looking for an efficient way to hide their identities, activities and illegal financial transactions. Even as the number and types of tokens proliferate, certain alt-currencies have also become the aiders and abbetors of criminal activity, darkside coins if you will."
Read the rest of the writeup here: https://www.investing.com/analysis/as-cryptocurrencies-proliferate-so-do-certain-criminal-activities-200302190
