hi @nuoctuong ,
it's quite a significant amount of money, you know how long it will take you to get it back, on the other hand if you are in the world of coins since before 2017 being afraid of scams is a normal thing.

I'm promoting That curation trail on HIVE and it would help me a lot if you forward it, You can also check it yourself: you might find it interesting to join, I'd love to hear your comments.