Facebook CEO Mark Zuckerberg says the social media conglomerate is going through ‘a broad philosophical shift’ in response to criticism and new legislation.

The thirty-three-year-old internet mogul apologised in front of the US Senate Commerce and Judiciary for his company’s lack of preventative measures against data-mining company Cambridge Analytica during the 2016 presidential campaign.

Mr Zuckerburg said it was a ‘big mistake’ and the network didn’t take a broad enough view of its responsibility, and in response Facebook shares made their biggests daily gain in two years.