Zero Trust is a security model that assumes that no connection can be trusted, even if the user or account has been previously authenticated. It protects the network by enforcing strong authentication and authorization mechanisms and applying micro-segmentation to ensure threats are contained in the event of a breach.
Unlike traditional network security, which distrusts external entities but trusts entities within the perimeter, Zero Trust security evaluates all components—including those inside the network—in real time. This makes it significantly more difficult for attackers to gain unauthorized access to sensitive information and disrupt critical business processes.
A Zero Trust model does not trust the underlying network fabric and requires input and output validation for all microservices and network devices. It includes building and implementing a defense-in-depth architecture that is resilient to compromised microservices, identities, or individual components.
How Zero Trust Works
The execution of this framework combines advanced technologies such as risk-based multi-factor authentication, identity protection, next-generation endpoint security, and robust cloud workload technology to verify a user or system’s identity, honor access at the time, and make systems perform Security. Zero Trust also requires considering encrypting data, securing email, and verifying sanitization of assets and endpoints before connecting to applications.
Traditional network security follows the “trust but verify” mindset and grants access to data and information. Zero Trust security follows the “trust nobody and verify everything” paradigm. With the traditional method, users are automatically trusted, leaving organizations at high risk of attacks and security breaches. Organizations must monitor and validate user access and establish controls before granting access in the Zero Trust architecture method.
How to Implement a Zero Trust Model
Here are some useful concepts for implementing a zero trust model.
Protecting the Workforce, Workplace and Workloads
The three Ws are a handy slogan for remembering what an organization needs to protect.
Enterprises must protect users and personal devices from phishing, stolen credentials, and other attacks that exploit legitimate user identities. This protection can be achieved using tools such as multi-factor authentication, which help prevent unauthorized users and devices from accessing the network. Authentication tools verify the identity of each user or entity and provide visibility into each user devices. They help enforce dynamic security policies that control access to all applications. Users must meet two or more authentication requirements. When the system grants them access, security teams can see who is accessing which application, what devices they are using, and what actions they are taking.
By protecting the corporate network at the headquarters or branch office, IT and security teams gain visibility into the devices and users accessing applications. Network connection control helps teams identify and block threats using a software-defined access control approach. Organizations can secure network access from the workplace to inspect requests from local users or connected IoT devices within the corporate network.
Protecting the flow of information on an enterprise network requires end-to-end workload security that spans the data center, cloud, and connected endpoints. Organizations can use tools to protect their application workloads across multiple clouds and data centers by restricting lateral movement, identifying and analyzing anomalous workload behavior, and minimizing the overall attack surface.