Binance has a great reputation and generally regarded as one of the best crypto exchange with highest daily volume. I trade quite a lot and haven't faced any issue with binance, be it trading or deposit or withdraw, don't term anything scam just because you're facing an issue with it.
Did you ask them what exactly is the reason they blocked your account? Which security issue? An account cannot be permanently blocked for any simple reason as far as I know.
Oh Dude, I thought the same
I asked them and the answer was "for your security reasons" but I have already provided a million of my documents and even had a video skype call with their representatives and still nothing.
About "which security issue" they didn't answer.