Motorola’s Regina Dugan suggested at the Wall Street Journal’s D11 conference that pills and tattoos could replace passwords as the radical solutions to the perennial authentication problem. … University of Illinois researcher Dr. John Rogers developed an electronic tattoo that was later produced by a company called MC 10. Motorola plans on working with them to advance a tattoo that could be used for authentication. … Dugan described her next method of authentication as “vitamin authentication” before pulling a pill out of her pocket and explaining that the pill had a small chip inside of it. The chip contains a...