Twitter has reportedly admitted that it revealed users’ location information without their permission. Twitter said that the issue affected "a small percentage of people" who had their location sharing option turned on in settings. The company added that they have removed the locations from tweets that were affected by the bug and have sorted the issue.
We’ve discovered an issue for a small percentage of people who recently had location sharing on, Tweeted from https://t.co/fuPJa3nVky, and tapped to add an emoji or GIF. In certain instances, a city-level location was also included in the Tweet.
— Twitter Support (@TwitterSupport) November 24, 2017
This happened for less than a week for people who had enabled Tweeting with location in their settings – but may not have intended to tag a city in these specific Tweets. The issue did not occur for people who had location Tweeting turned off in their settings.
— Twitter Support (@TwitterSupport) November 24, 2017
We've removed the locations from potentially affected Tweets & are directly emailing those who may have been impacted, if an email address has been provided to us. We take these types of issues seriously. We’re sorry this occurred & will continue our work to make Twitter better.
— Twitter Support (@TwitterSupport) November 24, 2017