The biggest tech firms are set to sell millions of smart glasses despite growing privacy concerns.

The messages highlight the illegality of what people are searching for online and direct them towards help.

The voluntary recall follows an incident on 20 April where an empty Waymo car entered a flooded road in San Antonio, Texas.

The regulator said the forum had not done enough to protect UK users - but critics accuse Ofcom of acting too slowly.

A cyber security expert says deleting chat history could lead to a lack of accountability if things go wrong.