@hamje32 - It depends upon which collapse you’re talking about. I think derivative trading was implicated in the stock market collapse of 1987, among other factors. Other later stock market crashes had to do with other things like “dot com,” bubbles, housing bubbles, etc.
As for security, all financial investing involves risks. Common examples of derivates are futures or options and these are very risky indeed, as they involve contracts to buy or sell at a price in the future. Prices could swing either way, of course, and so you expose yourself to risk that way.