Knocknoc is an Australian cybersecurity company focused on reducing network exposure and protecting systems from brute-force attacks, vulnerabilities, and unauthorised access. Its solution orchestrates existing network controls, such as firewalls and security groups, to keep ports and services invisible until users authenticate through an organisation’s identity platform. Access can then be granted just in time to trusted users, limiting the attack surface without requiring a client installation or routing critical infrastructure through a VPN or cloud service.

Knocknoc supports protection for internet-facing and internal applications, remote-access services, cloud assets, legacy systems, development environments, and sensitive networks, including operational technology and industrial control systems. It can work with existing VPNs or, where appropriate, replace them while enabling access to services using protocols such as SSH and HTTPS. Organisations can deploy Knocknoc on premises, in their own cloud, through managed cloud hosting, or in air-gapped environments. The platform integrates with identity providers and existing security infrastructure, with a scripting backend for customisation.