Google has started sending notifications to those affected by it error in Google + API which was disclosed in December 2018. The notification contains details about which profile data was exposed, and which applications they had access to them.
On 10 December 2018, Google announced that a bug in the Google + API allowed applications to allow users to view private data on their profile that they normally should not have access to.
According to the company's announcement, this bug affected more than 50 million users.
Since last week, Google+ users who have been affected by this bug have begun receiving notifications from Google that mention which profile fields were exposed and which applications accessed them. The fields exposed as well as the applications are in an attached file called app_details.csv, in accordance with bleepingcomputer.
The company has already decided to end the social service Google+ in August 2019 due to lack of interest from users, but also a previous error in the API who leaked personal information from 500.000 Google+ accounts.
With the unveiling of the second bug in the API in December, Google has decided to close the service against "headaches, headaches." 2019.