Facebook is having to answer tough questions about how it allowed Cambridge Analytica to harvest data about millions of users, raising concerns about how tech giants safeguard personal information. BBC News reports:\n\n[QUOTE]In addition to calls from US politicians for explanations, Massachusetts' attorney general said it planned to look into the data grab. Other political figures urged the Federal Trade Commission to probe Facebook to assess how well it safeguarded user data.\n\nAntonio Tajani, who heads the European Parliament, said it wanted to find out if data had been misused. He said Facebook had to take more responsibility for users' data and added that "allegations of misuse of Facebook user data is an unacceptable violation of our citizens' privacy rights".\n\nThe European Commission is already believed to have made contact with Facebook about the probe.\n\nThe UK Prime Minster's spokesman echoed this call, saying: "It is essential that people can have confidence that their personal data will be protected and used in an appropriate way."[/QUOTE]\n\n\nRead more [URL='http://www.bbc.co.uk/news/technology-43461865']here[/URL].