Lots to read, but it’s necessary to do so before you do anything. For instance, there seems to be no point and some risk just in checking the site Equifax put up to see if your information has been compromised.
UPDATE: The title of this post, “Equifax hacked,” might be a bit misleading. I don’t know exactly what happened in this case. Consider a hypothetical. If Japanese agents killed the guards, drilled into Colonel Blimp’s safe, and made their getaway in an ultra-light helicopter they assembled from parts they carried in, then the Post could report “Japanese Agents Steal War Plans.” If Colonel Blimp left the war plans at McDonald’s, and an opportunistic thief picked them up and sold them to the Japanese, the Post wouldn’t say “Japanese Agents Steal War Plans.”