I was reading about Cashaa, that was hacked and 336BTC were stolen. But the hacker can't move them right? He will leave footprints. So why should hackers steal them since they can be found? For example if they want to convert them to fiat.
The only way I think you could get by from this felony is to keep them on very long term. So long that it may be forgotten. But still, it may.
The hacker will figure out how to move the funds to another wallet. We can see the bitcoin move from one wallet to another wallet, but we still don't know who the hacker is. And if they don't reveal themselves, we only know the funds move without knowing who the owner of the wallet is. They can hide pretty well because they have skills to do that, so I believe that they will find that way to get the money.
Two questions.
1) How exactly can a hacker escape with a mixer?
2) Why do mixers exist?
1. They send the funds to the mixer and let the mixer do the dirty jobs for them. Meanwhile, the hacker can do another thing to prepare the escape.
2. You can visit this page to learn
why to mix coins.
The hacker can convert the bitcoin amount to the altcoin, and that is the best way they can do to prevent the tracking, and they can still hide.
Already owned addresses? And who promises me that he won't steal me?
As long as you can find recommended mixing services, they won't steal your money because their reputations will be their concern to serves their customer.