A recent software update to a Google+ API left some data of 52.5 million users exposed and available to app developers. The data included rudimentary user information, including names and birth dates. As a response, Google has moved up Google+'s kill date from August 2019 to April 2019, four months sooner than previously announced.
https://www.notebookcheck.net/Google-will-kill-Google-sooner-due-to-bug-that-exposes-data-of-52-5-million-users.376626.0.html