PostHog EU Outage History

Every past PostHog EU outage tracked by IsDown, with detection times, duration, and resolution details.

There were 2 PostHog EU outages since April 2026. The 2 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor April 24, 2026

April 2026: Phishing emails sent via PostHog invite system

Detected Apr 24, 2026 11:07 PM UTC · Resolved Apr 25, 2026 12:00 PM UTC · Duration about 13 hours

An attacker exploited PostHog EU's invite system to send phishing emails containing malicious links between April 22-24, affecting users who received unexpected invite emails. PostHog deployed a fix to prevent further abuse, blocked the attacker, and confirmed no compromise of their data or systems occurred. The incident was resolved after 12.9 hours with continued monitoring for additional malicious activity.

Minor April 23, 2026

April 2026: Session replays are stuck buffering in EU

Detected Apr 23, 2026 8:19 PM UTC · Resolved Apr 24, 2026 7:32 AM UTC · Duration about 11 hours

PostHog EU experienced an issue where session replays were stuck buffering for 11.2 hours, affecting the App component. The team identified and deployed a fix, with replays returning to normal buffering functionality and no data loss occurring.