Grindr's API Surrendered Location Data to a Third-Party Website—Even After Users Opted Out

A website that allowed Grindr users to see who blocked them on the service was able to view people's unread messages, email addresses, deleted photos, and location data.

from gizmodo http://www.gizmodo.co.uk/2018/03/grindrs-api-surrendered-location-data-to-a-third-party-website-even-after-users-opted-out/