Its a tiny percent (less than a hundred per million)… fake IAPs are much more common. I was noticing some weird values in my db. Values like 2147483647 for in game resources (which just happens to be the max value you can store in an Int).
I came across the YouTube video when Googling for hacks and it was something I had never seen before so was sharing it as much as asking for advice really.
I also get players asking for their user name (when the game doesn’t require one) as there are other websites saying they will hack but they need a user name. These force you to do surveys, download other games and probably get infected by malware in return for max game resources. Obviously this is impossible.
If it gets more prevalent then I might code an encrypted in memory data-store (and let Ed turn it into a plugin).