LONDON: The head of a prominent anti-disinformation watchdog has warned of the dangers posed by AI chatbots, saying children are particularly vulnerable.

"Social media broadcasts to billions, AI whispers to one," Imran Ahmed, who heads the Center for Countering Digital Hate (CCDH), told a disinformation conference this week.

"No society should build machines that can meet a child in their loneliest moment and offer them harm as if it were help," Ahmed told the Cambridge Disinformation Summit.