This article from CNET has the latest on how to thwart the thieves that grab our information using CC skimmers.  There’s even an Android app that identifies compromised card readers.

https://www.cnet.com/news/credit-card-skimmers-thieves-are-getting-smarter-you-can-too/?ftag=CAD5920658&bhid=20980837865735071428998659322041