Equifax was hacked a few weeks ago and over 140 million identities have been stolen. You can read more about it here.
Equifax has a page to see if your ID is in danger and you can also receive a year of credit protection from them for free, regardless of the status of your identity.
Here is a tidbit of info to know about this. Credit Card numbers were not stolen. The data that was stolen was Social Securities, Dates of Birth, Addresses and other pieces of information that cannot be changed. That means that it might be two years or more before the identity thieves use the data to get a new card or file for a tax return or anything else that thieves use other identities for.
So stay alert. Identity theft is one of the largest problems in the US and the rest of the world.