Robot security dogs have been spotted at Mar-A-Lago, the Florida home of US president-elect Donald Trump. Who are behind them, and what security services do they offer? Also on the programme, we hear about one phone company’s plan to waste phone scammers’ time. And the startup using AI to provide loans to people without a credit history. We love hearing from you on Tech Life. Get in touch by emailing techlife@bbc.co.uk or sending us a Whatsapp on +44330 1230 320. Presenter: Zoe Kleinman Producer: Imran Rahman-Jones Editor: Monica Soriano(Image: A picture of a Boston Dynamics dog, “Spot”. Credit: Reuters.)