UK probes Facebook over data breach

LONDON: Britain is investigating whether Facebook did enough to protect data after a whistleblower said a London-based political consultancy hired by Donald Trump improperly accessed information on 50 million Facebook users to sway public opinion.

Facebook shares closed down nearly 7 percent on Monday, wiping nearly $40 billion off its market value as investors worried that damage to the reputation of the world's largest social media network would deter users and advertisers. Elizabeth Denham, the head of Britain's Information Commission, is seeking a warrant to search the offices of consultancy Cambridge Analytica after a whistleblower revealed it had harvested the private information of millions of people to support Trump´s 2016 US presidential campaign.

"We are looking at whether or not Facebook secured and safeguarded personal information on the platform and whether when they found out about the loss of the data they acted robustly and whether or not people were informed," Denham told BBC Radio. US and European lawmakers have demanded an explanation of how the consulting firm gained access to the data in 2014 and why Facebook failed to inform its users, raising broader industry questions about consumer privacy.

In Washington, the Republican chairman of the Senate Commerce, Science and Transportation Committee sent a letter on Monday to Facebook CEO Mark Zuckerberg requesting information and a briefing on the Facebook user data.

"The possibility that Facebook has either not been transparent with consumers or has not been able to verify that third party app developers are transparent with consumers is troubling," read the letter which was also addressed to Nigel Oakes, chief executive of Cambridge Analytica´s affiliate SCL.