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AO3 Offline After Security Incident; Restoration Could Take Two to Four Weeks

The Organization for Transformative Works says it detected a security incident that may keep millions of fanworks inaccessible for weeks.

Overview

  • AO3, which went offline for maintenance on Thursday, Oct. 29, now has an official estimate that service restoration will take about two weeks but could extend to four weeks.
  • OTW confirmed evidence of a security incident on Oct. 30 and said it is in the early stages of investigating the scope of the breach.
  • The organization says no AO3 data has been deleted, that donor records are stored in a separate system and were not exposed, but it cannot yet rule out that the user database was stolen.
  • Mixed signals between the OTW status page and third‑party monitors like Downdetector have left users confused about availability while volunteer staff work on recovery.
  • Millions of readers and writers are already taking preservation steps such as sharing local archives and using alternative platforms, and the outage could disrupt fandom activity and publication schedules for weeks.