It's really sad to know that in different places we notice that there are a lot of issue in regards in cryptocurrency. There are a scamming portion in some other places and there are robberies portion in dubai. In what happening now, we do recognize how people are eagerly desperate to do foolish things to others just to have crypto. This is another negative things that can really brings bad effects to cryptosystem. I think this is also the reason why some countries are doing totally banned of crypto in their country because there's a fact that crypto will be possible cause of doing people's illegal activities. This could be the big problem in cryptosystem that really needs to make immediately solution.