No scams and hacks are not the major risks that one should look at when it comes to bitcoin, because when you are careful enough and know your way around bitcoin you can never fall for scams and possibly hacks. When talking about risks, we are looking at something that can affect everybody that has invested in bitcoin. We are looking at the wider picture here, something that when it happens everyone is affected irrespective of how careful you are or not. And that is the risk of bitcoin price going down to zero. This is the biggest risk that's associated with bitcoin. Even though I don't see the possibility of that happening, but we can't neglect the fact that such risk still exists in bitcoin. This is the major risk that all investors should be more concerned about.
This really got my attention, you don't have to say never because anything of such can happen hence i would love to say that we all need to look at this in a real terms, it is most realistic for anyone to accept the fact that no matter how careful you are that doesn't make you have an immunity towards being scammed being careful as you said which everyone should know will only reduces the exposures and the risk of being scammed but if you say never that sounds so unrealistic to me, we can only do our best and wish the bad day never comes.
What make you think it's unrealistic? If you have been in this space for a long time, you can easily identify scams once you see it without anyone telling you that this is a potential scam. There are those that can confidently tell you that they can never be scammed as far as bitcoin is concerned and I am telling you that I can never be scammed. Unless you are among those that are still chasing after shitcoins and memes which I don't, but if you do then you have positioned yourself be scammed, no matter how careful you might be.
Don't ever give your bitcoin to third parties to manage for you, manage your bitcoin yourself. Never connect your wallet to any website or app, don't expose your private key to a third parties. Always verify address that you are sending your bitcoin to before initiating transaction. Do these things and see scam stay far from you.