While Zero Trust is secure, it still has some limitations – it cannot address issues like DDoS attacks, human-errors, misconfigured devices etc. Also, VLANs and NGFW have inadequate security. Hence, a better approach for security across all network layers and for all types of traffic is needed. Network Access Control (NAC) can identify and keep track of any device connecting to a network. Internal Segmentation Firewall provides controls that NGFW, VLANs can’t.

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