The US government announced in August 2020 that hundreds of cryptocurrency accounts, four websites and four Facebook accounts were seized. This step has failed the attempt to collect funds with the digital currency of militant groups.
However, digital currency is still banned in Bangladesh. Bangladesh Bank issued a notice on December 2016 asking everyone to refrain from such transactions.
Unregulated decentralized currency will have some problems, that has always been the case, when we first said that we do not want government interference with our money, we took the reality of bad people using this currency as well. Just a few years ago we had dark net that sold drugs and even provided illegal services for bitcoin payments, that was always the case even when we first started, and that is why we should not be shocked about news like this.
Of course it is not good that this happens, money laundering should not be a bitcoin problem, but people laundered money even before bitcoin, you think there was no money laundering before 2008? Of course there was, so we should not see this as a problem of bitcoin but a problem of currency, whatever currency there will be, people will always do illegal stuff and launder that money into regular life.