Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Zscaler's monitoring confirms that the environment has remained stable following the mitigation. Continued monitoring is in place to ensure sustained stability and prevent recurrence.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved the issue affecting audit log visibility in the admin portal. The underlying cause has been addressed and audit logs are now visible and accessible across all affected clouds.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved the issue preventing a subset of administrators from logging into the Zscaler Admin Console. The issue was caused by a routing defect introduced in a recent build upgrade that caused IDP-based authentication requests to be misrouted to an incorrect region, resulting in a tenant lookup failure and 401 unauthorized error. The build has been successfully rolled back to the previous stable version, and admin console login has been confirmed restored.
Mexico City II Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler can confirm that the issue has been resolved without any intervention. Preliminary findings indicate that the issue was observed within the network provider’s infrastructure, and our monitoring has confirmed that the network is stable.
Risk360 Data Update and Risk Score Accuracy Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zscalerrisk.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved the issue causing interrupted ZPA-related data updates in Risk360. Affected connectors have been successfully reactivated and data updates have resumed across impacted accounts. A code-level fix addressing the underlying cause has been deployed to production. Risk360 data and risk scores are confirmed accurate and the issue is resolved.
Network Connectivity Degradation — Mexico City I and Mexico City II Data Centers - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the routing adjustments applied by Zscaler, service has been restored at the Mexico City I and Mexico City II data centers, and monitoring has confirmed continued stability. The incident is resolved. The routing adjustments remain in place while the third-party provider completes permanent repairs to the affected connectivity.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved an issue where a subset of customers across ZSNet and ZSCloud may have experienced disruption in Cloud NSS firewall log delivery to their configured SIEMs. The issue has been fully resolved and services are confirmed stable.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
A fix has been verified and is planned for release in an upcoming production update, with more details to be shared as they become available.
Legacy Incident Archive
453 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.
May 2026
Inline DLP Policy Editing Issue for Non Super Admin Users - zscalertwo.net, zscalerthree.net
Source not attested
Last archived state: investigating
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investigating
Zscaler is investigating an issue impacting tenants with Admin Ranking enabled, where administrators without Super Admin privileges may be unable to edit inline DLP policies after creation. Current investigation indicates newly created or existing inline DLP policies may be assigned an incorrect administrative rank value, preventing subsequent policy modifications by the original administrator. At this time, Super Admin accounts remain able to modify affected policies. Zscaler teams are activ...
Tokyo V (TYO5) Datacenter Network Maintenance - zscloud.net
minorSource not attested
Last archived state: resolved
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resolved
Zscaler will be performing hardware maintenance in Tokyo V (TYO5) Datacenter.Maintenance window: Start: 2026-05-20 11:00 UTC End: 2026-05-20 14:00 UTC (Local Time 2026-05-20 20:00 - 2026-05-20 23:00 JST)Update - Wed, 20 May 2026 12:48:09 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
DNS resolution Control Gateway issue on ZS2 - zscalertwo.net
Source not attested
Last archived state: investigating
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investigating
Zscaler has detected an issue with its zscalertwo.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root cause- Issue occurred due to an control-plane event that temporarily prevented control gateway DNS endpoints from being published.Latest Update - Tue, 19 May 2026 ...
Upcoming New Data Centers and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Source not attested
Last archived state: investigating
View archived record details
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on May 15, 2026, we would like to notify you of the upcoming new data centers and expansions at the locations listed below. These would be available anytime on or after July 14, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any ser...
Miami IV Data Center online - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Source not attested
Last archived state: investigating
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investigating
Dear Zscaler Customer,You are receiving this notice in accordance with the Zscaler Service Continuity Policy.As part of our effort to enhance our Security Cloud’s robustness and performance, Zscaler will be bringing online a new Miami IV (MIA4) data center. This facility will be added to the public resolution service (Auto Geo Proximity) on May 19, 2026What if I have more questions? Contact Zscaler Support via the “Support” link at the top-right of the Zscaler Administration U.I page....
Reminder Notification for Upcoming New DCs and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Source not attested
Last archived state: investigating
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investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on April 1st, 2026, we would like to remind you of the upcoming New DCs and expansions at the locations listed below. These would be available anytime on or after May 31, 2026Please update your firewall policy rules and any upstream access lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDRNotesAmericasMontreal I198.1...
Madrid IV (MAD4) Datacenter Network Maintenance - zscalertwo.net
minorSource not attested
Last archived state: resolved
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resolved
Zscaler will be performing hardware maintenance in Madrid IV (MAD4) Datacenter.Maintenance window: Start: 2026-05-19 18:00 UTC End: 2026-05-19 21:00 UTC (Local Time 2026-05-19 20:00 - 2026-05-19 23:00 CEST)Update - Tue, 19 May 2026 21:01:52 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Madrid IV (MAD4) Datacenter Network Maintenance - zscloud.net
minorSource not attested
Last archived state: resolved
View archived record details
resolved
Zscaler will be performing hardware maintenance in the Madrid IV (MAD4) Datacenter.Maintenance window,Start: 2026-05-19 16:00 UTCEnd: 2026-05-19 19:00 UTC(i.e. 2026-05-19 18:00 - 21:00 Local Time)Update - Tue, 19 May 2026 18:49:58 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance on AMER Region - zscaler.net
minorSource not attested
Last archived state: resolved
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resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on AMER Region on the zscaler.net cloud. This maintenance can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support ...
Amsterdam II Datacenter Issue - zscalertwo.net
Source not attested
Last archived state: investigating
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investigating
Zscaler has detected an issue with our Amsterdam II datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status cha...
