If you're trying to hide something then that's a TERRIBLE place to put it. I'd highly recommend something like veracrypt where you can encrypt a container, and

If you're trying to hide something then that's a TERRIBLE place to put it. I'd highly recommend something like veracrypt where you can encrypt a container, and the container may or may not have another part encrypted with a different password - you don't know until you enter the correct password for the hidden section.