Unity Engine reportedly has been exploit by Crypto shitfest.

We reportedly that we have a problem for gaming community: Unity has been exploit by Crypto. This was from Unity 2017, which is now invulnerable. Any games who use this will be updated to newest Unity engine.

This cause some games like Fallout Shelter, Life in Strange: Before the Storm, and more has been reportedly gone or delisted on Android (though not in the iOS).