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Using a workload group as source narrows administrative access compared with internet-wide permission. For the stated conditions, security groups lack explicit deny rules while NACL rule-order processing can enforce a scoped subnet deny. The more specific mechanism is nACL explicit deny entries can take precedence based on ascending rule-number evaluation.

Subnet membership alone is weaker identity than authorized workload security-group membership. For the stated conditions, security groups lack explicit deny rules while NACL rule-order processing can enforce a scoped subnet deny. The more specific mechanism is nACL explicit deny entries can take precedence based on ascending rule-number evaluation.

Group references bind access to associated workload identities rather than static IP lists. The reported evidence instead concerns nACL explicit deny entries can take precedence based on ascending rule-number evaluation: security groups lack explicit deny rules while NACL rule-order processing can enforce a scoped subnet deny.

Configuration-based path analysis can identify blockers without requiring production application packet capture. That property alone cannot account for the reported symptom; a log disposition identifies a blocked flow but not the precise rule or network layer responsible.

A permitted virtual network path can coexist with a crashed application or failed TLS handshake. That property alone cannot account for the reported symptom; a log disposition identifies a blocked flow but not the precise rule or network layer responsible.

Query logging reveals requested names and resolver behavior rather than full application HTTP transactions. The decisive technical distinction is VPC Flow Log action fields do not inherently identify the particular policy rule that rejected traffic; a log disposition identifies a blocked flow but not the precise rule or network layer responsible.

An interface endpoint can be healthy yet unreachable if its ENI security policy drops the client connection. In this situation, service scoping reduces blast radius compared with unrestricted full VPC network connectivity. The proposed change does not ensure consumer routing exposes the intended API only and does not provide general transit to provider hosts.

A gateway endpoint's route works only for route tables explicitly associated with it. It does not directly achieve the required result: consumer routing exposes the intended API only and does not provide general transit to provider hosts. The constraint is that service scoping reduces blast radius compared with unrestricted full VPC network connectivity.

Routing segmentation is needed in addition to security-group controls for least-privilege multi-VPC topology. The needed control instead targets privateLink consumer interfaces expose a service-specific endpoint without providing entire provider CIDR routes; it succeeds when consumer routing exposes the intended API only and does not provide general transit to provider hosts.

Alarm state depends on time-window evaluation and missing-data policy, not merely one isolated datapoint. The reported evidence instead concerns VPC Flow Logs aggregate network-flow observations over collection intervals rather than logging each packet individually: flow-log aggregates are not equivalent to packet captures and omit individual packet payloads.

CDN access logs can distinguish edge-visible request patterns from only origin server events. The decisive technical distinction is VPC Flow Logs aggregate network-flow observations over collection intervals rather than logging each packet individually; flow-log aggregates are not equivalent to packet captures and omit individual packet payloads.

Traffic counters at interfaces and load balancers capture different paths and may use different periods. That property alone cannot account for the reported symptom; flow-log aggregates are not equivalent to packet captures and omit individual packet payloads.

Internal scheme and security-group rules jointly prevent direct public listener exposure. That property alone cannot account for the reported symptom; dynamic container networking requires registration of actual reachable task addresses instead of fixed node identities.

The source identity visible to a target can differ based on transport and load-balancing configuration. For the stated conditions, dynamic container networking requires registration of actual reachable task addresses instead of fixed node identities. The more specific mechanism is an ALB IP target group can register permitted IP endpoints rather than relying on instance target registration.

Static NLB frontend addressing suits IP allowlisting while ALB addresses may change over time. The reported evidence instead concerns an ALB IP target group can register permitted IP endpoints rather than relying on instance target registration: dynamic container networking requires registration of actual reachable task addresses instead of fixed node identities.

IPsec provides confidentiality and integrity across a transport that may use the public internet. The needed control instead targets a transit virtual interface terminates at a Direct Connect gateway associated with Transit Gateways; it succeeds when routes from the associated hub VPCs are reachable through the approved transit interface.

Owning the Transit Gateway does not automatically grant authority to attach another account's Direct Connect gateway. The needed control instead targets a transit virtual interface terminates at a Direct Connect gateway associated with Transit Gateways; it succeeds when routes from the associated hub VPCs are reachable through the approved transit interface.

VGW allowed-prefix filters cannot force unsupported more-specific VPC routes to appear in BGP. In this situation, transit VIF connectivity targets Transit Gateway associations instead of directly attaching every individual VPC. The proposed change does not ensure routes from the associated hub VPCs are reachable through the approved transit interface.

A trusted CA becomes a powerful impersonation tool if issuance permissions are overly broad. For the stated conditions, private routing reduces exposure to public internet paths but does not independently encrypt packet payloads. The more specific mechanism is Direct Connect dedicated private transport alone does not guarantee confidentiality of application data in transit.

Possession of the server private key enables impersonation even when its certificate is public. That property alone cannot account for the reported symptom; private routing reduces exposure to public internet paths but does not independently encrypt packet payloads.

Mutual TLS verifies client certificate identity separately from the listener's server certificate. For the stated conditions, private routing reduces exposure to public internet paths but does not independently encrypt packet payloads. The more specific mechanism is Direct Connect dedicated private transport alone does not guarantee confidentiality of application data in transit.

A TGW attachment can be connected yet lack a path under its new routing-domain membership. For the stated conditions, endpoint availability in one VPC does not automatically change corporate DNS resolution for the service. The more specific mechanism is hybrid PrivateLink consumers need correct private DNS forwarding and routes to the endpoint ENI.

Policy publication and fully converged regional routing are different lifecycle milestones. The reported evidence instead concerns hybrid PrivateLink consumers need correct private DNS forwarding and routes to the endpoint ENI: endpoint availability in one VPC does not automatically change corporate DNS resolution for the service.

Link-up only proves the local optical transport, not the control-plane routing relationship. The reported evidence instead concerns hybrid PrivateLink consumers need correct private DNS forwarding and routes to the endpoint ENI: endpoint availability in one VPC does not automatically change corporate DNS resolution for the service.

Partially failed infrastructure updates need lifecycle-aware rollback handling, not random manual edits. The needed control instead targets cloudFormation drift detection identifies supported out-of-band configuration differences; it succeeds when the stack's supported resources return to expected configuration after controlled reconciliation.

Local IAM allow statements cannot override an explicit effective Organizations deny. That adjustment does not address the controlling condition: a deployed template cannot guarantee continued agreement after direct console mutations. Verify the stack's supported resources return to expected configuration after controlled reconciliation.

CDK is an authoring layer, not a replacement for CloudFormation's deployed resource lifecycle. In this situation, a deployed template cannot guarantee continued agreement after direct console mutations. The proposed change does not ensure the stack's supported resources return to expected configuration after controlled reconciliation.

The most specific matching blackhole takes precedence over a broader valid route. The decisive technical distinction is Transit Gateway forwarding alone does not associate private hosted zones or configure DNS resolvers; iP connectivity and DNS namespace visibility are separate controls in multi-account architectures.

Private endpoint DNS behavior is separate from merely establishing the private network interface. For the stated conditions, iP connectivity and DNS namespace visibility are separate controls in multi-account architectures. The more specific mechanism is Transit Gateway forwarding alone does not associate private hosted zones or configure DNS resolvers.

An attachment can have a different associated routing view from where its CIDR propagates. For the stated conditions, iP connectivity and DNS namespace visibility are separate controls in multi-account architectures. The more specific mechanism is Transit Gateway forwarding alone does not associate private hosted zones or configure DNS resolvers.

An attachment can have a different associated routing view from where its CIDR propagates. The decisive technical distinction is S3 gateway VPC endpoints provide private service routing through selected VPC route tables; a gateway endpoint's route works only for route tables explicitly associated with it.

An attached TGW does not automatically redirect packets that a VPC subnet table sends elsewhere. The decisive technical distinction is S3 gateway VPC endpoints provide private service routing through selected VPC route tables; a gateway endpoint's route works only for route tables explicitly associated with it.

Private endpoint DNS behavior is separate from merely establishing the private network interface. The reported evidence instead concerns S3 gateway VPC endpoints provide private service routing through selected VPC route tables: a gateway endpoint's route works only for route tables explicitly associated with it.