The zero-trust framework takes the approach of presuming an organisation is at risk all the time. Cyber defence strategy is applied incorporating validation, authorisation and authentication to prevent a security breach.
A zero-trust cyber security model is based on deny all principle which ensures access is granted after sufficient authentication, authorisation and validation. To implement the zero-trust model, the technology architecture is set as a Zero-Trust Network Access (ZTNA).
The Zero-Trust-Network Access is a collection covering an array of cyber security solutions to protect remote access with a deny-first approach. A Zero-Trust Network Access withholds application storage by hiding the data from anyone who does not have the authorisation to access the IT infrastructure.
While data storage is regularly stored within the cloud, one effective zero-trust solution is Microsegmentation. Microsegmentation limits access to different network components by setting security parameters to divide the network into zones. If one zone is compromised, the rest of the network can function as required preventing downtime. Another benefit of segmenting the network is the ability to prevent the attacker from gaining lateral movement across the network.
Multi-factor Authentication (MFA) is another important facet of the zero-trust solution where standalone credentials cannot give access unless a separate code is provided often sent in a SMS. Multi-factor authentication is based on verifying the user through their chosen method.
One of the most thriving approaches of the Zero-Trust framework is the constant monitoring and validation features an organisation has access to. For instance, an authenticated user is monitored throughout their visit on an application. As the user moves through the digital channels belonging to an enterprise, routine checks can determine if the user is compromised. In essence, no user is left unattended as the zero-trust monitoring can discover adversaries and pre-empt any malicious attacks that could unfold through a compromised account.14