how does this thing work

Lets say i withdraw from Hitbtc to a wallet, and there are no confirmation in the wallet after many days.

And the wallet address were right and the wallet is not a scam wallet, so everything should be fine.

In Hitbtc payment history the transaction is with these three yellow dots, and will it be like that forever ?

Ok, so were are the coins ? who is steeling them, i am just not understanding how these things works.

If someone were going to steal them, would they not steal them when they would arrive in the wallet ? how can they steal the coins on the way to the wallet ?