About a year and a half ago, I was trading in a bitmex exchange for a year. At that time, I did not have a serious problem with that exchange, but it seems that this exchange does not have much supervision to prevent price manipulation, and a large number of price manipulations have been done so far.
In addition to extreme manipulation, most of the time in the case of fast dump and pump the price goes at least a little more and this causes more active positions to be liquidated.
In terms of security, I did not have a problem with bitmex, and two-step login can be enabled to prevent account hacks.
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