I have all the alerts set up on my cards. Recently I got an alert about two nearly simultaneous charges for several thousand dollars from - get this - a circuit court in Illinois! (I live in California.) I contacted my credit card company and they immediately closed the account and sent me a new card overnight. Who would be dumb enough to use a stolen credit card number to pay a circuit court? I still don't know how they got my credit card number, though I suspect it may have been through the EquiFax hack. At any rate, I was glad that I spotted the fraud within minutes of its occurrence.