Your signature is no longer needed on most electronic transactions as a way to prevent fraud. But customers are still being asked to sign at many restaurants, bars and other businesses, and people keep signing out of habit. Wall Street Journal personal finance reporter Oyin Adedoyin joins host J.R. Whalen to discuss when a signature is and isn\u2019t required.\n\n\n\nSign up for the WSJ's free Markets A.M. newsletter.\xa0\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices