/ Product Profile
    Cisco

    DNS Defense

    A cloud-delivered security service that uses the Domain Name System (DNS) layer to prevent users and devices from connecting to malicious or unwanted internet destinations.

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    Picari insights

    Mid-market to enterprise organizations seeking a low-friction, cloud-delivered DNS security layer to proactively block threats and enforce web policies across hybrid and distributed workforces.

    Best for
    • First line of defense against phishing, ransomware, and C2 callbacks
    • Protecting roaming and off-network remote endpoints without backhauling traffic
    • Rapid, low-overhead security deployment across distributed branch sites
    May not be ideal if
    • Deep packet payload inspection and full session traffic reconstruction
    • Internal east-west lateral movement detection that does not query external DNS
    • Air-gapped or fully offline network environments

    Core capabilities

    AI-based detection of DNS tunneling and Domain Generation Algorithms
    Block domains associated with malware, phishing, botnets, and ransomware
    Cloud Data Loss Prevention and malware scanning
    Web content filtering with policy-based access restrictions

    Common use cases

    01

    Cloud file storage malware protection

    02

    DNS-layer threat prevention for remote workers

    03

    Enterprise web content filtering

    Things to consider

    Every product has trade-offs, and which of them matter depends on your environment, your team and your timeline.

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    Cisco DNS Defense pricing and integrations

    For Cisco DNS Defense integration and pricing details, ask Picari. Start a briefing with your question, such as whether it connects to your SIEM, identity provider and ticketing stack, or how it is priced at your seat count and data volume.

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    Profile last updated on 6 September 2026 by Picari.