As mentioned above, any of the platforms can be hacked. Binance is the biggest crypto exchange for buying and selling a massive number of different crypto assets. They have extra-ordinary levels of security.
However, even Binance have been successfully hacked and multi-million $USD of crypto funds have been lost for ever.
As their reputation is so valuable and they have deep pockets, they have compensated users for their lost funds up until now.
The only safe place to store crypto is in your own wallet where you own the private key.
I’m not saying don’t hold it on a platform such as the ones originally mentioned, or Binance. I’m just saying that your funds will never be completely safe.
The crypto world is full of extremely tech savvy individuals who spend their life looking for vulnerabilities in platforms security systems.
Once you have succeeded in the difficult bit of hacking a platform and stealing their crypto, the next step of hiding your stollen crypto is extremely easy.
Send the stollen crypto off the platform to a private wallet
Send the crypto to a crypto exchange
Sell it and buy a completely untraceable crypto like Monero
Send your Monero to your private wallet
Move to another private wallet.
Viola your stollen funds are untraceable