What is the possibility that cryptowallets can succumb to these kinds of attacks? How is it possible that Satoshi's wallet has still, after so many years, not been hacked using a brute force mechanism?
It's because the search space (number of possible keys to guess) is astronomic; 2^256.
If you had a billion people, each person owning one billion computers, each computer capable of guessing a billion keys per second, then a billion years would still not have exhausted one-billionth of all the possible keys.
That makes sense. So his wallet will be broken in about 10 years plus 10 years marking the time for advancement of CPU and time for brute force to spend calculating with the advanced CPU.
I'm sure many people are trying. On a slightly related note - I wonder what the market effect would be on bitcoin (and possibly crypto as a whole) if anyone managed to transfer money out of the wallet, would it crash the currency?