Robinhood stock trading site is alerting users that passwords were stored in their system in human readable format, otherwise known as clear text. This could have allowed employees or unauthorized users to view an account’s password. This issue was discovered Monday night and has since been resolved, but Robinhood is suggesting users reset their passwords to be safe. Robinhood has told BleepingComputer that a forced password reset was not performed as there was no evidence that they were accessed outside of their response team. They further reiterated that this issue only affected a portion of their user base.
Source: https://www.bleepingcomputer.com/news/security/robinhood-brokerage-firm-alerts-of-passwords-stored-in-clear-text/