In a nutshell, a rotating - categories card offers bonus cash back, usually in the 5 percent range, for particular credit card transactions during a given period of time. (cardratings.com)
Also, there's protection included with particular credit cards; it's always worth checking with the bank. (rocketlawyer.com)
On some credit cards, the coverage only covers that particular credit card company and damages which occur from the loss or theft of that one particular card. (identitytheftsecrets.com)