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edit defender endpoint false positives
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defender-endpoint/defender-endpoint-false-positives-negatives.md

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In endpoint protection solutions, a false positive is an entity, such as a file or a process that was detected and identified as malicious even though the entity isn't actually a threat. A false negative is an entity that wasn't detected as a threat, even though it actually is malicious. False positives/negatives can occur with any threat protection solution, including [Defender for Endpoint](microsoft-defender-endpoint.md).
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If you have Microsoft Defender XDR, you should review the Alerts sources as described in [Investigate alerts in Microsoft Defender XDR](/defender-xdr/investigate-alerts?tabs=settings).
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If you have Microsoft Defender XDR, review the "Alerts sources" as described in [Investigate alerts in Microsoft Defender XDR](/defender-xdr/investigate-alerts?tabs=settings).
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Now, if the Alert source is Microsoft Defender for Endpoint”, continue here. 
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Continue here if the "Alert source" is "Microsoft Defender for Endpoint".
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Next is to review the “detection source”:
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The next step is to review the “detection source”:
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|Detection source| Information|
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| -------- | -------- |
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|EDR|The alert is related to Microsoft Defender for Endpoint – Endpoint Detection and Response <br/> • Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives) <br/> • Work-around: Add an EDR exclusion|
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|Antivirus|The alert is related to Microsoft Defender Antivirus in Active mode (Primary) where it will block. If Microsoft Defender Antivirus in Passive mode, EDR in block mode might just detect.<br/> • Solution: Submit the False Positive to [https://aka.ms/wdsi](https://aka.ms/wdsi) <br/> • Work-around: Add [Indicators - File hash - allow ](/defender-endpoint/defender-endpoint-false-positives-negatives)or an [AV exclusion](/defender-endpoint/defender-endpoint-false-positives-negatives)|
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|Antivirus|The alert relates to Microsoft Defender Antivirus in Active mode (Primary) where it will block. If Microsoft Defender Antivirus is in Passive mode, EDR in block mode might just detect.<br/> • Solution: Submit the False Positive to [https://aka.ms/wdsi](https://aka.ms/wdsi) <br/> • Work-around: Add [Indicators - File hash - allow ](/defender-endpoint/defender-endpoint-false-positives-negatives)or an [AV exclusion](/defender-endpoint/defender-endpoint-false-positives-negatives)|
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| Custom TI| Custom indicators (Indicators - [file hash](/defender-endpoint/indicator-file) or [ip address or URL](/defender-endpoint/indicator-ip-domain) or [certificates](/defender-endpoint/indicator-certificates)) <br/> • Solution: How to[ manage indicators](/defender-endpoint/indicator-manage). <br/><br/> Or if you see CustomEnterpriseBlock, it could be <br/> <br/> 1) Automated Investigation and Response (AutoIR) – <br/> • Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives) <br/> • Work-around: [Automation folder exclusions ](/defender-endpoint/manage-automation-folder-exclusions)<br/> 2) Custom detection rules deriving from Advanced Hunting (AH) – <br/> • Solution: [Manage existing custom detection rules ](/defender-xdr/custom-detection-rules)<br/> 3) EDR in block mode – <br/> • Solution: Submit the False Positive(s) to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/> • Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [AV exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/> 4) Live Response – <br/> • Solution: Submit the False Positive(s) to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/> • Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [AV exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/> 5) PUA protection – <br/> • Solution: Submit the False Positive(s) to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/> • Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [AV exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)|
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| Smartscreen|[ Smartscreen](https://feedback.smartscreen.microsoft.com/smartscreenfaq.aspx) [report unsafe site](https://www.microsoft.com/en-us/wdsi/support/report-unsafe-site) or it could be related to a [Network Protection detection](https://www.microsoft.com/wdsi/support/report-exploit-guard)|
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