Unlike many other platforms in the market that have suffered devastating hacks in the tens of millions of dollars recently, PrimeXBT has never been hacked or breached by hackers and has successfully protected its users’ funds 100% of the time.
This is in no small part as a result of the range of advanced security features implemented throughout the platform, as well as PrimeXBT's focus on creating a range of communication channels with its users to be able to quickly tackle issues.
That doesn't prove anything to be honest, you should keep in mind that the more popular trading platforms and exchanges get, the more attempts at hacks and stealing funds will be targeted at them, and because obviously PrimeXBT is not as popular as Bitmex or Kucoin that's not a very good comparison, not saying PrimeXBT have security issues but it just haven't been tested under real pressure yet and that will only happen when PrimeXBT gets real popular, I just remember how years ago before Binance hacking incident people though there were unhackable but we all see what happened.
By the way I used PrimeXBT about a year ago and the whole experience was good and I didn't face any major issue with them apart from the fact that trading fees for crypto tradings was a bit high, I think it was about 0.3% or something, trading fees for Forex however was at reasonable rate.