In my opinion we have around 150+ millions crypto addresses. And the market cap is 2 trillions USD.
Plus miners are ready to run their machines for any job be it mining or hacking. With Amazon AWS / Google Cloud machines ready to be used by anyone. Personally, I think it is just a question of time. I was thinking about of this issue a long while. The person / groups who will crack an address, they will most likely not announcing it.