While logging into my account earlier today, I discovered that a game I didn’t own but which was already installed from another Epic Games Store account was appearing in my library. Trying to boot the game resulted in it running fine, no error messages or stops at all. This was replicated on another machine and the result was always the same. As long as you had a game installed in the Epic Games directory, you could run the game even if you didn’t own it.

The exploit was consistently replicable even when creating a completely new account that doesn’t own any games. As well as making a new account we even tested the exploit on a third machine and the exploit persisted, meaning that it is almost certainly possible to do this with any account, on any machine.