Would everyone be able to see your net worth if money supply is all crypto/stable dollar?

So, if the US money supply, and I guess also the rest of the world's goes to a block chain technology, wouldn't the potential be there for everyone to be able to find out everyone's holdings/net worth? I'm other words: wouldn't we lose all of our financial privacy? I understand that governments, your bank, your creditors, already have know what everyone's net worth is, but do we really want just anyone knowing? Wouldn't that make us less safer. 8 really do not understand the block chain too well. Specifically, how are hackers stopped?