Proton Mail incident

Global Outage

Resolved after 2 hours 18 minutes, affecting SimpleLogin and Proton Wallet and 1 more, on August 26, 2026.

resolved Aug 27, 2026, 12:27 AM UTC

This outage has now been largely resolved, and services are back online. We are still clearing a few lingering issues, however, meaning some users will experience delays in email delivery and reception, and receiving notifications. No data has been lost as a result of this outage.

Started
Aug 26, 2026, 10:09 PM UTC
Resolved
Aug 27, 2026, 12:27 AM UTC
Duration
2h 18m
Detected by Pingoru
Aug 26, 2026, 10:09 PM UTC

Affected components

SimpleLoginProton WalletLumo by Proton

Update timeline

  1. investigating Aug 26, 2026, 10:09 PM UTC

    We are currently investigating this issue.

  2. investigating Aug 26, 2026, 10:11 PM UTC

    We are continuing to investigate this issue.

  3. investigating Aug 26, 2026, 10:14 PM UTC

    We are continuing to investigate this issue.

  4. investigating Aug 26, 2026, 10:18 PM UTC

    We are continuing to investigate this issue.

  5. identified Aug 26, 2026, 10:38 PM UTC

    We have identified a critical cooling failure in our Frankfurt datacenter. We are currently in the process of shifting traffic to our backups sites.

  6. identified Aug 26, 2026, 11:37 PM UTC

    Our efforts to restore impacted services are now yielding results, and as a result are starting to recover for some users. Meanwhile, we are continuing recovery operations.

  7. monitoring Aug 26, 2026, 11:57 PM UTC

    A fix has now been implemented, and we're monitoring results. This means most services have been recovered for most users now, but our efforts to recover the remaining instances continue.

  8. resolved Aug 27, 2026, 12:27 AM UTC

    This outage has now been largely resolved, and services are back online. We are still clearing a few lingering issues, however, meaning some users will experience delays in email delivery and reception, and receiving notifications. No data has been lost as a result of this outage.

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