Security Software

Frequently Asked Questions

Which Intel® processors are affected?

Affected processors for each security advisory are included in the published disclosure guidance and can also be found under the Resources tab. We have also published a consolidated affected processors by product CPU guide that includes recommended mitigations to help developers assess the impact of transient execution attacks on currently supported Intel products.  The  Security Center also identifies which processors are affected within each specific advisory. 

What should I do if I’m running a Linux* distribution?

Contact your operating system vendor for the latest information.

How do I apply microcode updates to my system?

Microcode updates (MCU) are typically included with operating system (OS) updates from your OS vendor. End users do not have to take any special actions to apply these mitigations other than ensuring that your system OS and drivers are up to date. Contact your OS vendor for information on which OS versions incorporate the latest microcode.  We have also published expanded Microcode Update Guidance that explains details about the MCU process on current Intel processors. Microcode requirements also can be found on the Security Center for each specific advisory. 

How do I update the microcode?

Intel always recommends running the latest microcode for your system by using an updated BIOS or by OS loading of microcode updates if supported by the platform. See the Security Center for each advisory with the latest details on what options are available. This is especially true when mitigating potential side-channel cache exploits.

Intel technologies’ features and benefits depend on system configuration and may require enabled hardware, software, or service activation. Performance varies depending on system configuration. Check with your system manufacturer or retailer or learn more at

All information provided here is subject to change without notice. Contact your Intel representative to obtain the latest Intel product specifications and roadmaps.

Software and workloads used in performance tests may have been optimized for performance only on Intel microprocessors.

Performance tests, such as SYSmark and MobileMark, are measured using specific computer systems, components, software, operations and functions. Any change to any of those factors may cause the results to vary. You should consult other information and performance tests to assist you in fully evaluating your contemplated purchases, including the performance of that product when combined with other products. For more complete information visit

Performance results are based on testing as of dates shown in configurations and may not reflect all publicly available​ updates.

The products and services described may contain defects or errors known as errata which may cause deviations from published specifications. Current characterized errata are available on request.

Intel provides these materials as-is, with no express or implied warranties.

No product or component can be absolutely secure.

Your costs and results may vary.

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