Recently, I have seen various messages on social networks such as WhatsApp and Instagram that promise you a short-term profit of 400% bitcoin.
400% short-term profit and all these things are theft and be careful.
Where is the source of messages? Would you mind sharing them, please.
400% short-term profit is very high and I only see the profit claim from PONZI. If anyone invite me to join group with profit claim at 10 to 20 % each month, I can consider to participate. 400%, no I don't look at it.