What Is Zero Trust Security and Why Does It Matter

As cyberattacks increasingly exploit compromised identities rather than network vulnerabilities, traditional perimeter-based security is no longer sufficient. Zero Trust Security addresses this challenge by adopting the principle of "Never Trust, Always Verify," requiring every user, device, and application to be continuously authenticated and authorized regardless of location. A key component of this approach is least privilege, ensuring users have only the access necessary for their roles to reduce the risk and impact of compromised accounts. With identities now serving as the new security perimeter, organizations must strengthen identity protection through measures such as multi-factor authentication (MFA), privileged access management (PAM), identity governance, conditional access, single sign-on (SSO), and continuous monitoring to better defend against modern cyber threats.