What also happened: However, the Journal report noted that tracking knowledge in the hands can lead to risks of illegal surveillance, blackmail, and non-public attacks. Watch Benzinga Live: Lessons from Warren Buffett (NYSE: TWTR) owned MoPub while this was happening, but sold the company last year for $1 billion. Grindr’s information was purchased through mobile advertising company UM, which accessed it from MoPub’s ad network and then sold it to its customers Twitter Inc. The information was first sold to ad networks for micro-targeted marketing campaigns involving stalls and products close to Grindr users, as long as users allowed the app to geo-locate them, which it did to the maximum, as the app allows encounters between other people who are close to each other. While the knowledge in consultation didn’t come with non-public data, adding names and phone numbers, it was offering clues about their places and activities based on patterns, habits, and routines. What happens: The report, which comes from anonymous “people close to the archive,” said the data was available to acquire for ad networks since at least 2017, but hasn’t been obtained for two years.