The gang sold bitcoins and other forms of web money to their particular customers.
Digital currency transactions are functioned online where all information is kept secret. This type of digital currency is called cryptocurrency.
Cryptography method is used for bitcoin exchange and the code used in this method is quite impossible to figure out, the SP added.
The funny thing that i found in the article is that, the authorities are claiming that it is impossible to figure out the transactions and yet they found those transactions and arrested three people. Are they trying to claim that they are intelligent enough and they can decipher anything which are quite impossible and i am not sure what all stories they are telling. The people who got arrested might have done something fishy, if not they wont get arrested like that and i am sure there are many people who are trading bitcoin from Bangladesh for years and now they are claiming that they arrested for trading bitcoin.
The issue is that those 3 arrested committed other crime apart, they can not be arrested for just trading bitcon or cryptocurrency because from the news it clear there were operating a fake site which is related to crypto which can also be used to fraud others which is illegal before the law.