The Mark

I've never been interested in all the "end times"-focused stuff that is around. But recently I attended a video session of Katherine Albrecht teaching about the possible spiritual dangers of Christians being physically marked as part of marketing or security practices. She suggested that these marks might be the mark described in Revelation, and that those who are so marked will be destroyed. Her idea seemed to be that Christians might be marked, not knowing that the mark would bring destruction, and then be destroyed. Is that what scripture teaches? I don't know, but I'm going to try to check it out.