President Barack Obama’s 2012 re-election campaign mined supporters’ personal data from Facebook to benefit its voter turnout program. But former campaign officials said Wednesday they accessed and used the information in vastly different ways than Cambridge Analytica, the firm connected to President Donald Trump’s 2016 campaign accused of improperly lifting data on 50 million Facebook users. Former Obama advisers said they collected the data with their own app complied with the social media platform’s terms of service and received permission from supporters. An estimated 1 million Obama supporters gave the campaign access to their Facebook data. In most cases, Obama supporters who signed on to the campaign’s mailing list were asked to authorize the campaign’s Facebook app allowing it to access certain aspects of their profile, including their posts, likes, photos, demographics and similar data from their Facebook friends. The Obama data was used in voter turnout efforts, with a focus on young voters in key battleground states, and former campaign officials said the data was kept secure and not sold to or acquired from third parties.