Is Lightning AI down? › Outage history › Oct 16, 2026
Lightning AI outage on Oct 16, 2026: what happened
Ongoing
The latest official update says: "More details here: https://lightning.ai/security-incident"
Posted Oct 19, 2026, 12:49 UTC on the Lightning AI status page. This page was last refreshed Oct 22, 2026, 12:35 UTC and is refreshed every 3 hours.
Lightning AI has an open incident on its official status page: "Service is down to address a security incident". It started at Oct 16, 2026, 20:34 UTC and has lasted 5 days 16 hours so far.
Lightning AI right now
At our last refresh (Oct 22, 2026, 12:35 UTC) Lightning AI was up: All Systems Operational.
- Started
- Oct 16, 2026, 20:34 UTC
- Status
- Ongoing (identified)
- Duration
- ongoing, 5 days 16 hours so far
- Official impact
- Critical
- Source
- Service is down to address a security incident on the Lightning AI status page
The Lightning AI status page rated it "Critical", its highest impact level: an outage of the affected parts, not only slowness.
What caused the Lightning AI outage?
The Lightning AI status page has not published a cause yet. When it identified the problem at 20:34 UTC on Oct 16, 2026, it said: "More details here: https://lightning.ai/security-incident"
Is the Lightning AI outage fixed yet?
Not yet. It is still open on the Lightning AI status page: the latest official update, at Oct 19, 2026, 12:49 UTC, says "More details here: https://lightning.ai/security-incident". This page is refreshed every 3 hours; for the current state see the live Lightning AI status page on this site.
Timeline of official updates
Every update the Lightning AI status page posted, oldest first. Times are UTC.
Oct 16, 2026, 03:08 UTC investigating
We are currently doing an emergency maintenance on the service
Oct 16, 2026, 20:34 UTC investigating
More details here: https://lightning.ai/security-incident
Oct 16, 2026, 20:34 UTC identified
More details here: https://lightning.ai/security-incident
Oct 19, 2026, 12:49 UTC identified
More details here: https://lightning.ai/security-incident
Lightning AI outage questions
What caused the Lightning AI outage on Oct 16, 2026?
The Lightning AI status page has not published a cause yet. When it identified the problem (Oct 16, 2026, 20:34 UTC) it said: "More details here: https://lightning.ai/security-incident"
Is the Lightning AI outage fixed yet?
Not yet. It is still open on the Lightning AI status page: the latest official update, at Oct 19, 2026, 12:49 UTC, says "More details here: https://lightning.ai/security-incident". This page is refreshed every 3 hours; for the current state see the live Lightning AI status page on this site.
How long did the Lightning AI outage last?
It started at Oct 16, 2026, 20:34 UTC and is still open: 5 days 16 hours so far, as of Oct 22, 2026, 12:35 UTC.
Was Lightning AI completely down?
The Lightning AI status page rated it "Critical", its highest impact level: an outage of the affected parts, not only slowness.
Other recent Lightning AI incidents
- Service recovery tracker Oct 3, 2026, 04:42 UTC, 2 days 14 hours
- Global Outage Oct 2, 2026, 08:50 UTC, 19 hours 52 min
- Lightning H200 Outage Oct 1, 2026, 19:52 UTC, 4 hours 18 min
- Degraded Performance on Lightning Cloud Workloads Sep 10, 2026, 20:37 UTC, 31 minutes
- Degraded Performance on Lightning Cloud Workloads Sep 4, 2026, 22:29 UTC, 2 hours 7 min
- Lightning Cloud workloads Aug 14, 2026, 16:36 UTC, 13 minutes
Full Lightning AI outage history and biggest outages → · Recent outages across all services →
Quotes are the Lightning AI status page's own words, from the official incident. Is It Up or Down is independent and not affiliated with Lightning AI. Times are UTC.