Learn Editor: Update tvm-security-recommendation.md

Author: YongRhee-MSFT

defender-vulnerability-management/tvm-security-recommendation.md

@@ -67,6 +67,8 @@ View recommendations, the number of weaknesses found, related components, threat
 
 The color of the **Exposed devices** graph changes as the trend changes. If the number of exposed devices is on the rise, the color changes to red. If there's a decrease in the number of exposed devices, the color of the graph will change to green.
 
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 > [!NOTE]
 > Vulnerability management shows devices that were in use up to **30 days** ago. This is different from the rest of Microsoft Defender for Endpoint, where if a device has not been in use for more than 7 days it has in an 'Inactive' status.