Nope.

But if this happens to you?

Or you notice that somebody has done this to another writer?

REPORT IT!!!!

That is, report it if it's on Medium.

If this is taking place off Medium? You can get in touch, tell them that you're on to them and threaten to sue.

But they'll probably call your bluff and you probably won't end up suing them.

That's the dirty downside of online publishing.