i dont have anything against binance about being one of the trusted exchanges, but how did you assess bnb to have highest security, where they were hacked last year? though they may have already upgraded their security system, but you dont have any back up of such claim.
Although they were hacked, they soon fixed it. Remarkably, investors did not lose their money, SAFU Fund helped keep investors safe. If this hack occurred in other exchanges, I believe that those exchanges would have collapsed and exit this market.
the Binance exchange place has insurance that can handle all risks when something unexpected happens as was the case in the past, where the binance exchange was briefly hacked and all the traders' assets are still safe because the Binance exchange is a trusted exchange platform already thought about it.