This is a very big problem for those who are engaged in crypto currency. And the further, the more this problem will increase, because they kidnap very large sums of money.
Scammers and hackers are one of the reasons why cryptocurrencies are extremely risky investment. Before we put our money, we should have a lot of knowledge about what is happening for us to secure our profits. Hackers are everywhere, they know how valuable digital money are that is why they are doing their best to hack accounts and stole others coins.