If you are an IBM z Systems customer (or their authorized representative), follow the steps described on this page to obtain access to the z Systems Security Portal for z Systems Security/Integrity APAR information (currently z/OS and z/VM).

The z Systems Security Portal is intended to help you stay current with security and system integrity fixes by providing current patch data and associated Common Vulnerability Scoring System (CVSS) ratings for new APARs. Security Notices are also provided to address highly publicized security concerns.

To obtain access to the z Systems Security Portal, send us an email by pressing the following button and provide the customer name, your name and Resource Link ID

IBM will then verify that you are a z Systems customer or their authorized representative.

By accessing the z Systems Security Portal you agree the information contained in it is IBM Confidential, provided AS IS, may be used by you for internal purposes only and may not be disclosed to any third party without IBM's prior written consent.

If you do not agree to these conditions, you may not access the z Systems Security Portal.

Please ensure that you update all of your z Systems products to a supported version. Security and integrity fixes are generally only issued for supported versions of z Systems products.

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Infrastructure matters. Businesses turn to the IBM mainframe for unmatched security, operational efficiency, speed, seamless scale, and lower cost per transaction. The IBM z System, the world’s premier data and transaction engine, is enabled for mobile, integrates transactions and analytics, and delivers efficient and trusted clouds.

Operating Systems

IBM z Systems supports multiple operation systems:


The IBM z Systems portfolio of solutions, along with IBM's deep industry expertise, helps organizations like yours reinvent enterprise IT for analytics, cloud, security and more.


IBM z Systems combine leading-edge innovation and unparalleled capabilities to power cloud, business analytics, mobile applications, and the most important workloads.

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