Comment by Gormo

> I don't think they baited and switched?

Technically true, because bait-and-switch refers merely to advertising an attractive product offer in order to lure people into a pitch for a different product.

In this case, they actually sold a product, then decided to maliciously alter the product after it was sold to modify its behavior. That makes this a much more serious offense, equivalent to trespass, vandalism, or possibly even burglary.

It's equivalent to selling someone a house that includes a secret entrance that you retain access to, so you can surreptitiously enter the house to steal the new homeowners' property after they've moved in.