I know that in mathematical terms, finding a private key of a bitcoin address is virtually impossible ... but not impossible. Having said that, a site like
https://www.privatekeys.directory/ gives the ability to virtually explore all the private keys existing in the elliptic curve. The Random button on the site
https://www.privatekeys.directory generates pages of private keys that could reveal addresses with a positive balance!!!
Considering that whale accounts and exchange accounts contain thousands of bitcoins, one lucky guy could accidentally find millions of dollars on hand !!
From what I understand the only defense against this event is to divide your assets into many accounts to reduce the risk. But even this trick can't ensure your funds aren't stolen by a lucky dude.
The more accounts you create, the harder it becomes to retain all the information in safe places. It's easier to keep one thing than two and more because the more you have, the more space and attention you need to keep.
The chance of someone stealing your keys that way is as low as the chance of you owning a magic power.
In statistics, we can say that the probability of the sun turning into human is zero, i.e. P(x) = 0. We can certainly say that it will never happen but in reality, the P(x) = 0 doesn't mean that it's fundamentally impossible to happen. Sometimes you should really forget all this stuff.