Don't boast that you have tons of precious coins online whether it is bitcoin, altcoins or any other forms of money which you have a business with cryptocurrency, that is the risk of showing off online that you are into crypto business even if you are a small time holder or not, they will think that you are rich cause the mindset of people knowing that you owned cryptocurrency is that you are super rich, well the criminals will not have a dilemma for transferring large amount of money because it is decentralized rather than a transfer from a bank which posesses some restriction, better to stay low profile not just on bitcoin but on any other financial businesses that are not necessay to say in public.