Archive Of Our Own, the nonprofit fan-fiction repository hosting more than 18 million works, went offline Thursday after the Organization For Transformative Works detected "evidence of a security incident" on the site.
The OTW said it is "still in the early stages of response to this security incident and determining its scope." AO3's database logs usernames, email addresses, IP addresses, and hashed passwords. The organization has no direct evidence the database was stolen but cannot "rule it out."
The site is expected to remain offline for at least two weeks, possibly as long as four weeks. The OTW said it may launch the site earlier in a "degraded state" with limited features or read-only mode.
AO3 assured its more than 11 million users that no data has been deleted and all works, messages, bookmarks, and site features are "safe."