Hacker or group of hackers broke into Reddit between June 14 and June 18. Hackers accessed old user data spanning from 2005 to 2007. Reddit is taking measures to tighten its security. All affected users will receive an email and will be prompted to change their passwords. Users should turn on two-factor identification, using an authenticator app, rather than SMS, on your Reddit account, toggled on in your preferences under the password/email tab on the frontpage of the internet”]
Source: https://gizmodo.com/reddit-hacked-some-user-data-stolen-1828031817