I think almost most of us already heard about the Bitcoin trader that was forced to give his Bitcoin over a gunpoint. It is quite scary that criminals are now also Bitcoin as their sort of "money" although it isn't stable to be. Now this made me think of something even larger that could possibly be a potential threat to all of us. From government banning to these robbers, I'm starting to think that even those people dealing with illegal things from the dark net could be also the potential threat to all of us including those hackers that could just track you with your IP within seconds. I still don't have an experience touching the dark web, because it is really risky but I learned few things about it such as the Silk Market, snuff films, other things that are unimaginably messed up. Since Bitcoin is now growing and a lot of investors are already putting their money at risk in the cryptocurrency including all of us, will these people prove a real threat for all of us? I am not trying to raise a fear here, as I am just curious what could possibly be a threat for us aside from the government that tries to ban cryptos.
If you are not going there you have nothing to worry about. If you know how to secure and hide yourself searching dark web is not anything scary. If you don't search for shady websites nothing really can happen. This being said fiat is used for a lot of criminal activity as well and today we see that many markets accept there XMR because it offers anonymity, where as bitcoin fails to do so. Every transaction can be tracked on bitcoin as it is public which is why criminals would not really opt for it. You already have threats today, just make sure to take precaution measures to secure your self. Such as learning more about other operating systems and tools with which you can raise your security level a bit higher.
Problem is that you don't want to tell other people how much money you own. This is not the first case that somebody put a gun on one person because of crypto currency. There were these like cases in past. Same as you could end up being robed in the middle of the street and giving your wallet with fiat in it, forcing you to go to the bank and get the cash out for them - these things happen.
As it goes for "bad guys" you can look at recent data breaches and viruses that are showing up. You have prob heard of wannacry and petya which encrypts your hardrive and asks you for crypto money. Other things that we are seeing lately is virus-miners. As from technical side simply use systems that are more secure such as linux, don't put everything on your mobile phone etc.