guys I have many account in many exchange and tread market like cryptopia,coinsmarket,kucoin,treadshtoshi etc.
but I don't know which market are safe my coin for tread?
You can be trying as many as like, but one thing I would like you to know is that you should never leave all your coins stored in exchanges cause they can get hacked and you will lose everything. Most of these exchanges are vulnerable to hackers attack, so always have your coins stored in a safe wallet and backed up with keys so you dont lose them. And dont forget to save your keys where it will be safe. As for exchanges you can use for trading, I think Binance and Bitfinex would be good better options.
I believe that is one thing that should actually have been the gospel according to safety on exchanges for a while now. It is an exchange, and you should always have that mindset that anything can happen to the exchange.
Exchanges get hacked every time, users get hacked every time, most especially for those who just leave their accounts vulnerable and too open for hackers to penetrate, but most of all, for the fact that you do not have full control of your wallet without a private key, you really need to understand the fact that this is all about not taking too high risk and try as much as possible to play safe.