Scam texts and emails pretending to be from Amazon have gotten good enough to fool even careful users. Amazon says it fields questions from 360,000 customers a year who just want to know if a message they received is actually real. Starting today, you can skip the guesswork and just ask Alexa for Shopping . You can ask Alexa like “did Amazon send me a text about a delivery problem yesterday,” and include any details you have, such as the sender’s number or email, when it...