UK - The backlash against Facebook over its handling of personal data has seen a co-founder of WhatsApp appear to back calls for users to delete their profiles. Brian Acton tweeted: “It is time. #deletefacebook” as the hashtag trended amid growing outrage over the social media giant's links to controversial British data firm Cambridge Analytica (CA). Along with WhatsApp co-founder Jan Koum, Mr Acton sold the app to Facebook for £11.4 billion ($19 billion) in 2014. The entrepreneur's apparent advocacy for people to remove their profiles came as Facebook faced pressure to explain its privacy safeguards from regulators and politicians in the US and UK. Cambridge Analytica was suspended from the social media giant last week after it emerged that data on 50 million users had not been destroyed as agreed.