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ARG_0 port open to all

Why This Matters

When a port is left open to all internet traffic, it creates an unrestricted entry point that attackers can easily discover and exploit. For IT administrators, this is one of the most common misconfigurations leading to data breaches, ransomware attacks, or unauthorized access to internal Azure resources. By restricting network access, you reduce the attack surface and enforce the principle of least privilege.

What Aether365 Checks

Aether365 verifies that no network security group (NSG) rule allows inbound traffic from any source (0.0.0.0/0 or *) on specified ports. This check appears in the Aether365 dashboard under the azure-network-security-groups category.

Microsoft references

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