Zscaler.net

Recent Incidents

Zscaler provides transparency around service availability and changes to our customers. Please refer to Zscaler’s service continuity customer notification policy for details.

February 2018

  • Incident:
    Resolved
    VPN Traffic

    Zscaler is investigating issues with VPN traffic processing. All organizations’ policies were enforced and transaction logs recorded.We will post additional information on this incident as it is available.

    Update: 2/14/2018 4:35:01 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

  • Incident:
    Resolved
    Reflected XSS vulnerability in Trust Portal

    A reflected XSS vulnerability was recently identified on the Zscaler Trust Portal (Trust.Zscaler.com). The Zscaler Trust Portal is a publicly accessible website and does not host sensitive information. Zscaler would like to thank Pankaj Rane for responsibly disclosing the vulnerability and working with us to ensure that it was properly patched in a timely manner. 

  • Incident:
    Resolved
    Sydney Data Center Issue

    We are investigating an issue with our Sydney data center. Traffic has been re-routed to the next closest datacenter while we investigate. We will post additional information on this incident as it is available.

    Update: 2/12/2018 23:36:13 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

  • Incident:
    Resolved
    Traffic Processing

    We are investigating an issue with traffic processing on our cloud. We are investigating periods of slowness and/or increased latency. We will post additional information on this incident as it is available.

    Update: 2/8/2018 14:46:08 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

     

  • Incident:
    Resolved
    Reporting and Logging

    We are investigating an issue with Reporting and Logging on our zscaler.net cloud. Your organization’s policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will post additional information on this incident as it is available.

    Update: 2/3/2018 6:06:22 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

January 2018

  • Incident:
    Resolved
    London III Data Center Issue

    We are investigating an issue with our London III data center. We are investigating periods of slowness and/or increased latency. We will post additional information on this incident as it is available.

    Update: 1/31/2018 16:31:32 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

  • Incident:
    Resolved
    Sao Paulo Data Center Issue

     

    We are investigating an issue with our Sao Paulo data center. Traffic has been re-routed to the next closest datacenter while we investigate. We will post additional information on this incident as it is available.

    Update: 1/20/2018 7:14:16 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

  • Incident:
    Resolved
    Traffic impacted for Customers using CISCO IPSLA

    We are investigating an issue with traffic processing for our customers using CISCO IP SLA. Your organization’s policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will post additional information on this incident as it is available.

     

    Update: 1/12/2018 15:26:22 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.​

  • Incident:
    Resolved
    Administration UI and User Authentication Issues

    We are investigating an issue with the administration UI on our zscaler.net cloud. Your organization’s policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will post additional information on this incident as it is available.

    ​Update: 1/9/2018 5:26:16 UTC - The issue is resolved. Please contact Zscaler Support if you have additional questions.
     

  • Incident:
    Resolved
    San Francisco IV Data Center Issue

    We are investigating an issue with our San Francisco IV data center. Your organization’s policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will post additional information on this incident as it is available.

  • Incident:
    Resolved
    San Jose Data Center Issue

    We are investigating an issue with our San Jose data center. Your organization’s policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will post additional information on this incident as it is available.

  • Incident:
    Resolved
    Meltdown and Spectre Vulnerabilities - Update

    Zscaler has continued its evaluation of the Meltdown and Spectre Vulnerabilities and posted the assessment and actions in a pair of blog articles: 

     

    How Zscaler is protecting customers:

    https://www.zscaler.com/blogs/research/meltdown-and-spectre-vulnerabilities-what-you-need-know

     

    How Zscaler is securing its cloud:

    https://www.zscaler.com/blogs/corporate/meltdown-and-spectre-vulnerabilities-protecting-zscaler-cloud

     

    Action required: If you are running any Zscaler private infrastructure software - ZPA connectors, NSS, VZEN, ZAB - it is your responsibility to update HOST OS and hypervisors to prevent exploitation of guest VMs by other VMs or code running on host. 

  • Incident:
    Resolved
    Meltdown and Spectre Vulnerabilities - initial assessment

    Zscaler is aware and is actively following a new publicly disclosed class of vulnerabilities that affect most modern operating systems and processors. Our initial assessment is that this class of vulnerabilities does not pose a serious risk to our cloud infrastructure or the data that we are securing. 

    As we evaluate Meltdown (CVE-2017-5754) and Spectre (CVE-2017-5753 & CVE-2017-5715), our top priorities are to keep our cloud running and our customer’s data secure and as such we are taking steps to evaluate and remediate any potential issues caused by these vulnerabilities.

    While the scope of this industry-wide vulnerability includes operating systems and hardware in use in our cloud, the critical elements of our infrastructure do not allow attackers to run exploit code.

    Nevertheless, we have been and will continue to patch our infrastructure as such patches become available. No additional user or customer action is needed. 

December 2017

  • Incident:
    Resolved
    Tokyo II Data Center Issue

    We are investigating an issue with our Tokyo II data center. Your organization’s policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will post additional information on this incident as it is available.

  • Incident:
    Resolved
    Data Center Issue at HKG1

    We are investigating an issue with traffic processing. Your organization’s policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will post additional information on this incident as it is available.

    Update: 1/6/2018 23:13:04 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

November 2017

  • Incident:
    Resolved
    Madrid Data Center Issue

    We are investigating an issue with our Madrid data center. Traffic has been re-routed to the next closest datacenter while we investigate. We will post additional information on this incident as it is available.

    Update: 11/28/2017 11:40:39 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

  • Incident:
    Resolved
    Shanghai Data Center Issue

    We are investigating an issue with our Shanghai  data  center. We are investigating periods of slowness and/or increased latency. We will post additional information on this incident as it is available.

    Update: 11/27/2017 16:57:37 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

  • Incident:
    Resolved
    Reporting and Logging

    We are investigating an issue with reporting and delayed logging on our zscaler.net cloud. We will post additional information on this incident as it is available.

    Update: 11/10/2017 22:26:37 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

     

October 2017

  • Incident:
    Resolved
    Tianjin Data Center Issue

    We are investigating an issue with our Tianjin data center. We are investigating periods of slowness and/or increased latency. We will post additional information on this incident as it is available.

    Update: 11/8/2017 8:10:09 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.

  • Incident:
    Resolved
    Hong Kong II Data Center Issue

    We are investigating an issue with our Hong Kong II data center. We are investigating periods of slowness and/or increased latency. We will post additional information on this incident as it is available.

    Update: 10/26/2017 14:21:39 UTC - This incident has been resolved. Please contact Zscaler Support if you have additional questions.