Google's plan is to restrict advertising software companies
The social media giant is developing better ad-buying tools for Chinese customers
The ads linked the drugs designed to prevent HIV
Aiming to curb diabetes rates in the city-state
The move is the latest by Facebook to crack down on efforts to deceive or manipulate users
It will feature ads on the homepage of its smartphone app worldwide
The election is due in October in Canada
Study found phone numbers given to FB for two-factor authentication were also used to target advertising.
As social media platforms face the threat of US regulation over the lack of disclosure on such spending
The company would not like its ads to “accidentally end up in the wrong place"