SonicWall DNS Security Service for TZ280 4-Year | DNS Filtering, TZ Series

Prevent users and devices from reaching known bad destinations with 4 years of DNS Security Service for the SonicWall TZ280. By filtering DNS requests before a session is established, this service helps stop access to malicious domains, phishing infrastructure, and command-and-control endpoints that often support broader attacks. It adds an efficient control point at the edge, where fast decisions matter. DNS security is especially valuable in environments that need protection without adding latency or complexity to traffic inspection. For branch offices, small sites, and distributed teams, it provides a direct way to reduce risk from web-based threats and domain-based attack paths. Because it acts at the DNS layer, it can help limit exposure even when users are off the corporate network or working across mixed device types. This 4-year subscription is built for organizations that want longer-term coverage and predictable security planning. It extends the value of the TZ280 by adding a focused control that complements firewall policy and helps close a common gap in perimeter defense.