Your security team should preserve context around why a certain exclusion was added to avoid confusion later on. Review and audit changes to your list of exclusions. Use exclusions only for specific issues, such as those pertaining to performance or application compatibility that exclusions could mitigate.

For example, don't exclude something just because you think it might be a problem in the future. Ideally, avoid defining exclusions in an effort to be proactive. Recheck and re-enforce mitigations as part of your review process. Other options can be as simple as making sure the excluded location has the appropriate access-control lists (ACLs) or setting policies to audit mode at first. Consider all your options when defining exclusions. Keep the following points in mind when you are defining exclusions:Įxclusions are technically a protection gap. You should always evaluate the risks that are associated with implementing exclusions, and you should only exclude files that you are confident are not malicious.

Microsoft Defender Antivirus includes many automatic exclusions based on known operating system behaviors and typical management files, such as those used in enterprise management, database management, and other enterprise scenarios and situations.ĭefining exclusions lowers the protection offered by Microsoft Defender Antivirus.

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