Equifax was naughty, both in storing its users information, and in publishing it to the world. Is there a remedy? Not my area of expertise; I don't know, but my brief research indicates it may be harder than you might think.
One suggestion I've seen is that there should be a common law remedy fashioned. Maritime law is the only major extant body of federal common law, so my sympathies naturally lie there.
What is interesting to me is that there is a small body of literature suggesting that common law is better, with the general conclusion that common-law systems are better at protecting creditor and stockholder rights, and facilitate more financial development. For more, Luigi Zingales's A Capitalism for the People touches on the topic.