Skip to content
NewA calmer, faster ZeroHour

AO3 taken offline after a detected security incident

Original title: Archive of our own (AO3) hacked

Hacker News · securityby idlewords ()2 min read
Part of a story covered by 3 sourcesAO3 stays offline after security incident; recovery may take weeksMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

Operators cannot rule out theft of usernames, emails, IP addresses and hashed passwords, and expect two to four weeks offline.

Archive of Our Own said it detected a security incident and will keep the site down while investigating. No works, bookmarks or kudos were deleted, and AO3 does not collect real names. Donor data sits in a separate system and was not exposed. The team does not currently believe the user database was stolen but cannot rule it out, and it expects restoration in about two weeks, possibly up to four, with a possible degraded or read-only return sooner.

Unconfirmed: AO3 says it does not believe the user database was stolen but cannot rule that out.

Key facts
  • Account data may include username, email, IP address and a hashed password.
  • Users should change any password reused from AO3 on other sites.
  • Restoration is estimated at two weeks and could take four.
  • A degraded or read-only return may still require later shutdowns.
  • The incident was identified on October 29, 2026, with an update on October 30.
Security assessment · AI, from the article

Impact: Possible exposure of usernames, emails, IPs and hashed passwords

ProductAffected
AO3—
What to do
  1. 1.Change passwords on other sites that reuse the AO3 password.
Analyze this story with Vani AIImpact, who is affected and what defenders should do, in a new chat

From the original article

2 min read at otwstatus.org

Update - Earlier today, we detected evidence of a security incident on AO3. We are still in the early stages of response to this security incident and determining its scope. AO3 will remain down while we continue investigating and addressing what has been found so far.

Hacker News · security

By idlewords · otwstatus.org

Read the full article at Hacker News · security

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.