Facebook Inc will pay a record-breaking US$5 billion (RM20.6 billion) fine to resolve a government probe into its privacy practices and will boost safeguards on user data, the US Federal Trade Commission and the social media company said on Wednesday.<br /><br />After the stock market closed, Facebook disclosed, as a part of its earnings report, that the FTC told it last month that the commission had opened a separate antitrust investigation of the company.