Knocknoc

Knocknoc is an Australian network-security company that removes the attack surface of existing infrastructure by orchestrating network-level access controls and linking them to an organization's identity platform. Ports stay closed and services remain invisible until users authenticate centrally, delivering just-in-time allow-listing without a client-side agent. The platform can replace or complement a VPN, works on-premise, in the customer's cloud, or as managed hosting, and integrates with existing firewalls, load balancers, and identity providers. Organizations with internet-facing applications or high-security internal networks use it to prevent unauthenticated scanning and zero-day exposure.