Will Save data transfer from one ps4 to another?

First of all this is probably a dumb question, but Im not tech savvy at all. So please bear with me.

If I log on to my account on a friends ps4 and play a game (disk), will the data I progressed through a game be available on my account on my ps4? In other words is save data tied to my account or to the actual ps4 hardrive?

PS: My gut is telling me that its tied to the hardware, but I just wanted confirmation. Thanks!