Artificial intelligence (AI) chatbots which simulate the language and personalities of dead people risk distressing loved ones left behind through “unwanted digital hauntings”, a researcher has warned. A Cambridge University study suggested that the AI chatbots – known as deadbots – need design safety protocols to prevent causing psychological harm. Some companies are already offering services which allow a chatbot to simulate language patterns and personality traits of a dead person using the digital footprint they have left behind, according to the research. AI ethicists from Cambridge’s Lev…