In August 2007, a configuration problem on a Facebook server caused the PHP code to be displayed instead of the web page the code should have created, raising concerns about how secure the private data on the site was. In November 2007, Facebook was embroiled in another controversy when it launched Beacon, a system (later discontinued in September 2009), where third-party websites could include a script by Facebook on their sites, and use it to send information about the actions of Facebook users on their site to Facebook, prompting serious privacy concerns.