LibraCyber incident

Some mailboxes are not protected by Smart Banners

Minor Resolved View vendor source →

LibraCyber experienced a minor incident on May 23, 2026 affecting Smart Banners, lasting 8h 1m. The incident has been resolved; the full update timeline is below.

Started
May 23, 2026, 09:44 AM UTC
Resolved
May 23, 2026, 05:45 PM UTC
Duration
8h 1m
Detected by Pingoru
May 23, 2026, 09:44 AM UTC

Affected components

Smart Banners

Update timeline

  1. identified May 23, 2026, 09:44 AM UTC

    50% of M365 mailboxes are not protected by Smart Banners. A fix is being deployed.

  2. monitoring May 23, 2026, 02:55 PM UTC

    Some M365 mailboxes are not protected by Smart Banners. A fix has been deploy and we are monitoring the impact.

  3. resolved May 23, 2026, 05:45 PM UTC

    This incident has been resolved.