Zero-Trust Security Model is a cybersecurity concept designed to protect digital environments. The main concept of the Zero Trust Security Model is that organizations should not automatically trust anything inside or outside its perimeters. Every person or endpoint device trying to connect to a private network resource must be first verified before access is granted.
The strategy around Zero Trust is very straightforward, do not trust anything, and authenticate everything. It is relevant for human users and non-human accounts that are trying to connect any network segment within the organization. The Zero-trust and VPN approaches are on opposite sides of the network security world. The VPNs enable connectivity for managed devices and authorized remote users, while the zero-trust approach restricts any kind of access.
Nowadays, The traditional approach of trusting devices within an organization perimeter, or devices connected with VPN, makes less sense in highly diverse and distributed environments. The problem with this approach is that once an attacker gains access to the network, they can access many IT assets and data sources. On the other hand, the zero-trust approach means that no one is trusted by default, and verification must be required for every access request. The Zero-trust security model’s philosophy assumes that threats are within and outside the organization network. It is much more strict and provides another layer of security.
Another fundamental principle of the zero-trust security model is least-privilege access, also known as the Principle of Least Privilege (PoLP). The main idea is that any user, application, or process should have only the minimum privileges necessary to perform its function. This principle of least privilege access is considered to be among the cyber-security best practices, and it is fundamental in protecting privileged user access to IT assets and sensitive data sources. The Principle of Least Privilege (PoLP) can be implemented at every level of IT. It applies to end-users, processes, systems, networks, databases, applications, and other IT resources.
The zero-trust security model also utilized micro-segmentation technologies by breaking up security perimeters into small and individual security zones to maintain separate access for different areas of the same network. The micro-segmentation replacing the traditional FireWall approach focused on network access rules and adding a dedicated security zone for applications, servers or data sources. This approach elevates the zero-trust concept by defining more security controls for each unique segment and enforcing authentication.
Multi-factor authentication (MFA) is another core value of zero-trust security MFA ensure that digital users are who they say they are by requiring at least two evidence to prove their digital identity. Each piece of evidence must come from a different category, for example, something they know and something they have. It provides a higher level of authentication and supports the zero-trust concept.
There is no single Zero Trust technology or solution. An effective Zero Trust strategy usually utilizes various approaches and technologies like Privileged Access Management (PAM), Password Vaulting, multi-factor authentication (MFA), and network segmentation. Zero-trust requires very detailed implementation by security professionals, focusing on the core principles and technologies listed above. At SEGMENTECH, we do more than implementing next-generation cybersecurity solutions. We help them grow, perform and succeed by implementing the solutions that fit your IT infrastructure. If your organization is ready to add another layer of security, contact us to discuss how we can assist.