Proton experienced a major incident on September 1, 2026 affecting Web Application and Free servers and 1 more component, lasting 4h 7m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 01, 2026, 12:37 PM UTC
We’re aware that a small number of users may be experiencing issues accessing Proton services. Our team is investigating and we will share updates here as soon as possible. We apologize for the inconvenience.
- investigating Sep 01, 2026, 02:42 PM UTC
We are continuing to investigate this issue.
- identified Sep 01, 2026, 05:10 PM UTC
Database capacity is being restored. Traffic limitations are being gradually lifted and outgoing mail will be re-enabled as soon as the situation is stable. Queued emails will be delivered progressively, and no data was lost as a result of this disruption. Thank you for your patience, we'll update you again once everything is back to normal.
- monitoring Sep 01, 2026, 05:26 PM UTC
Traffic limitations have been fully removed for all users. Services are returning to normal operation, and outgoing mail will be gradually re-enabled in 15 minutes. Messages that were queued during the disruption are being delivered progressively Our engineers continue to monitor the infrastructure closely as capacity returns to full levels. We'll confirm here once everything is completely back to normal.
- resolved Sep 01, 2026, 06:49 PM UTC
This incident has been resolved.