Is it possible for someone to manipulate trade? I have no technical knowledge in this area so I want to understand what they mean by "suspicious and fraudulent activity"
If that means, the user itself can manipulate it? Or the admin side of the exchange do the manipulation?
Or if this user done those, since he/she said that
"I just make an Order on pair coins for example BTC/USD for Bid Or Ask (lower or upper the price). "
How the manipulation can happen there? Or maybe mehdi1296 has multiple accounts created? Still, manipulation still can't be happen there