My company is keeping some sensitive data on-prem while moving our web apps to the cloud. What are the best practices for implementing Zero Trust to ensure secure access across these environments?
3 answers
Zero Trust is built on the philosophy of "never trust, always verify." In a hybrid cloud, this means you stop relying on VPNs to "protect the perimeter." Instead, you must implement strong Identity and Access Management (IAM) where every request—whether it comes from inside the office or the public internet—is authenticated and authorized. Use a central Identity Provider (IdP) like Okta or Azure AD that spans both environments. Also, implement micro-segmentation at the network level so that even if one web server is compromised, the attacker cannot move laterally to your on-prem database.
With so many authentication checks in a Zero Trust setup, does it significantly impact the end-user experience or application performance due to constant verification?
Don't forget about "Least Privilege." Ensure that every service account and user only has the absolute minimum permissions needed to perform their specific job.
Exactly, Virginia. Least privilege is the foundation of Zero Trust. It limits the blast radius of any potential security incident in the cloud.
If done poorly, yes, Dennis. However, modern Zero Trust uses "Identity-Aware Proxies" that handle verification at the edge. By using SSO (Single Sign-On) and risk-based authentication, users often don't even notice the checks. The verification happens in the background based on device health and location, so performance remains snappy while security is significantly tightened compared to old-school setups.