My friend did this with his neighbor's wifi (with their permission of course) just to see if he could. He got trial access to some super computers in the Google

My friend did this with his neighbor's wifi (with their permission of course) just to see if he could. He got trial access to some super computers in the Google cloud (sorry I'm not more specific, just recollecting what he told me) and was able to crack with that horsepower in a day or so.