# Change Your Password: The Data Advisory

OTW warned that the incident may have exposed usernames, email addresses, IP addresses, and hashed passwords, and advised users to change their passwords. The organization said it did not believe the user database had been stolen but could not rule it out - while confirming that bookmarks, kudos, and works were safe.

## Key facts

- Fields potentially exposed: usernames, email addresses, IP addresses, and hashed passwords.
- OTW said it did not believe the user database had been stolen but could not rule it out.
- Users were advised to change their passwords.
- OTW confirmed bookmarks, kudos, and published works were not lost.
- The clarification came on 2026-10-30, one day after the 2026-10-29 shutdown.

Part of the ao3 Security Shutdown: the outage that took 18 million fanworks offline collection at https://aiservicesmarket.lol/ao3/