Security checks / Check reference / Network security
Non Internet Facing VM Protected By Nsg
Medium Severity Microsoft 365 security check in the Network security domain.
Non-internet-facing VM is protected by a Network Security Group (NSG) NSG on internal VMs limits lateral movement Without it, an attacker who compromises one VM can freely access others on the same network Siemserva runs this check automatically across your tenant and maps every finding to the compliance frameworks below.
Check summary
What this check verifies
Non-internet-facing VM is protected by a Network Security Group (NSG)
Why it matters
NSG on internal VMs limits lateral movement Without it, an attacker who compromises one VM can freely access others on the same network
How to fix it
Maintain strict east-west segmentation rules in NSG
Siemserva flags every tenant where this check fails and, with Senserva Trustworthy AI remediation, can propose a validated fix you approve before it applies.
Ask your own AI about this check
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Compliance framework mappings
Findings from this check serve as evidence for:
References
Related Network security checks
Common questions
What does the Non Internet Facing VM Protected By Nsg check verify?
Non-internet-facing VM is protected by a Network Security Group (NSG) It is a Medium Severity check in the Network security domain, one of the 650+ checks Siemserva runs across Microsoft 365, Intune, Defender, and Entra ID.
How do I fix a Non Internet Facing VM Protected By Nsg finding?
Maintain strict east-west segmentation rules in NSG Siemserva ranks the finding by Severity and, with Senserva Trustworthy AI, can propose a validated, approve-before-apply configuration fix.
Which compliance frameworks does this check evidence?
Findings from this check map to SCuBA, MCSB, NIST, SOC2, CIS, and MCSB controls NS-1, LT-4. That mapping is what turns a scan finding into audit evidence.
Can I ask my own AI about this check?
Yes. This page includes a free copy-paste AI prompt carrying the check's facts: what it verifies, the risk, the remediation, and the framework mappings. Paste it into Claude, ChatGPT, or Copilot; cite-worthy detail without giving an AI access to your tenant.
All 672 checks with severities and mappings: the Microsoft 365 security checks catalog.