Facebook users are inadvertently providing access to their names and in some cases even their friends’ names to advertising and Internet tracking companies through some popular applications, the Wall Street Journal said. The issue affects tens of millions of Facebook app users, including people who set their profiles to Facebook’s strictest privacy settings, the paper said. The practice violates Facebook’s rules and raises questions about its ability to keep identifiable information about its users’ activities secure, the paper said. On Sunday, a Facebook spokesman told the Journal that it is taking steps to “dramatically limit” the exposure of users’ personal information.