My worry is not for the security of the block chain but for the security on Androids etc...which hold the wallets. NSA and all our fav software/hardware manufactures have built in back doors. So we have our keys and all in an unlocked car. I do have etherium, bitcoin and litecoin as the profits are large. I suggest flushing profits after a while so you can't be robbed.
Exchanges also seem to be a weak point. They can pool all the coins and play games with fractional reserving. This however forces you out to external wallets I mentioned before.
The wild west can have gold rushes and gangs of robbers. I still want the self regulated as rather than goverment any day.
Free market bitcoin vs supressed gold/silver and see what we get? If we had a alturistic gov market rigging and monopoly laws would be used. We get bubbles and too big to jail.