Box experienced a major incident on May 22, 2026 affecting Box Drive, lasting 32m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 22, 2026, 08:46 AM UTC
Our team is investigating an issue with Logins for Box Drive. Users attempting to log in to Box Drive may see errors or timeouts. Users encountering this issue can log in to the Box Web Application as a temporary workaround. We will provide additional information as it becomes available.
- monitoring May 22, 2026, 09:15 AM UTC
We have resolved the issue impacting Box Drive. We are continuing to monitor to ensure no further impact is observed
- resolved May 22, 2026, 09:18 AM UTC
After further monitoring, this incident is now considered resolved. Box services have been restored to full functionality. Please contact Box Support at https://support.box.com/ if you continue to experience any issues.
- postmortem May 29, 2026, 12:41 AM UTC
_Notice and disclaimer: Box is providing this preliminary information subject to further review and analysis. To the best of our knowledge, this is the current state and we may update as more information is confirmed._ Between May 21, 2026 at 10:56 PM and May 22, 2026 at 2:07 AM PDT, some customers attempting to sign into Box Drive may have experienced errors or been unable to complete the login process. The issue affected a subset of customers who use a particular Mobile Application Management \(MAM\) service that was not universal across all users. The problem was caused by a change to our single sign-on configuration that prevented certain Box Drive logins from completing. Service was restored after we reverted the configuration and validated successful logins for impacted users. We are reviewing our deployment and administrative procedures to reduce the risk of this type of issue recurring. We are conducting a full engineering postmortem and our overview is subject to change with further analysis and findings. In the event our continuing investigation yields further substantive findings, we may publish additional analysis after the conclusion of the full engineering postmortem. We are continuously working to improve Box and want to make sure we are delivering the best product and user experience we can. We hope we have provided some clarity here and we would be happy to answer any questions you may still have regarding this matter. Sincerely, The Box Team