SonicWall DNS Security Service for TZ480 4YR | DNS Filtering, Enterprise

Protect users at the DNS layer, where many attacks begin. SonicWall DNS Security Service for TZ480 adds cloud-delivered inspection and policy control designed to block malicious domains, reduce exposure to phishing and malware, and interrupt command-and-control callbacks before they can establish a foothold. Built for organizations that need consistent protection without adding appliance overhead, this 4-year service extends the value of the TZ480 by applying threat intelligence at the point of resolution. That means faster decisions, less noise, and a cleaner path to enforcing acceptable-use policies across distributed users and sites. For teams responsible for uptime and risk reduction, DNS-layer security is a practical control point. It helps stop threats early, supports more precise policy enforcement, and gives security teams better visibility into suspicious activity without disrupting normal traffic flows. The result is stronger protection for users, simpler administration, and a service term that aligns with long planning cycles and procurement standards.