https://www.techradar.com/news/reddit-got-hacked-exposing-the-personal-data-of-select-users

At last count, Reddit had at least as many average monthly users as the likes of Twitter, clocking in at over 330 million, was the fifth most visited site in the US, and had the highest user time-spend per day of any site in Australia.

Popularity often makes a website a juicy target for hackers, however, and Reddit’s now found itself an unwitting victim. Reddit's chief technology officer, Christopher Slowe, today revealed that the site experienced a data breach between June 14 and June 18, 2018, in which some of its users’ personal data was accessed.