Hi all. I recently encountered a problem with withdrawal of funds from a cryptocurrency exchange. And you won't believe it, but right after that I got a letter from supposedly a representative of this platform. But as it turned out it was a scammer. Who just took advantage of the occasion when the platform was just routine work and some functions were not working for about an hour. And I just at this point decided to withdraw the money. Well, I realized from the communication that this man is not who he says he is. And my money was safe. Can you tell me how often the cases of fraud on crypto exchanges happen?