Last week Facebook has addressed a security issue that exposed page admin accounts, the bug was exploited in attacks in the wild against several high-profile pages.
The page admin accounts are anonymous unless the Page owner opts to make the admins public, but a bug allowed anyone to reveal the accounts running a Page.
“The accounts behind those pages are anonymous unless a Page owner opts to make the admins public. You can’t see, for example, the names of the people who post to Facebook on WIRED’s behalf. But a bug that was live from Thursday evening until Friday morning allowed anyone to easily reveal the accounts running a Page, essentially doxing anyone who posted to one.” reads a post published by Wired.