{"id":8035,"date":"2025-09-29T11:53:39","date_gmt":"2025-09-29T16:53:39","guid":{"rendered":"https:\/\/www.threatstop.com\/blog\/from-nice-to-have-to-must-have-nist-and-cisa-cement-protective-dns-as-a-security-standard"},"modified":"2025-09-29T11:53:39","modified_gmt":"2025-09-29T16:53:39","slug":"from-nice-to-have-to-must-have-nist-and-cisa-cement-protective-dns-as-a-security-standard","status":"publish","type":"post","link":"https:\/\/ddi.mohflo.net\/index.php\/2025\/09\/29\/from-nice-to-have-to-must-have-nist-and-cisa-cement-protective-dns-as-a-security-standard\/","title":{"rendered":"From \u201cNice-to-Have\u201d to \u201cMust-Have\u201d: NIST and CISA Cement Protective DNS as a Security Standard"},"content":{"rendered":"
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For years, Protective DNS was treated as an optional safeguard\u2014something forward-leaning organizations deployed but not a baseline requirement. That era has officially ended. Recent guidance from NIST<\/strong> and CISA<\/strong> makes Protective DNS a recognized, standards-aligned control that organizations of every size and sector must adopt.<\/p>\n

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This shift has sweeping implications. It transforms Protective DNS from a tactical tool into a strategic requirement that regulators, auditors, and security leaders will expect to see in every serious cybersecurity program.<\/p>\n

What the New Standards Say<\/h3>\n

NIST Cybersecurity Framework (CSF) 2.0<\/strong>
Released in February 2024, CSF 2.0<\/a> broadened its scope and mapped organizations to practical outcomes. Within the \u201cProtect\u201d function, NIST highlights DNS protections as a key practice to reduce risk.<\/p>\n

CISA\u2019s Encrypted DNS Implementation Guidance<\/strong>
In May 2024, CISA <\/span>directed<\/a> U.S. federal agencies to use Protective DNS, adopt encrypted DNS protocols, and block direct third-party DNS resolution.<\/span><\/p>\n

NIST SP 800-81r3 (Draft, April 2025)<\/strong>
For the first time, NIST frames DNS<\/a> as an active security control. The draft lays out deployment best practices and calls Protective DNS a requirement for blocking malicious lookups, disrupting command-and-control (C2), and preventing data exfiltration.<\/span><\/p>\n

CISA Protective DNS Fact Sheets (2024 update)<\/strong>
CISA summarized the benefits<\/a> in plain language: Protective DNS blocks malicious destinations, thwarts phishing, detects malware C2, and extends protection to roaming and cloud endpoints.  However<\/span>, with the upcoming substantial cuts to the CISA 2026 budget, Protective DNS provided by CISA is in the crosshairs.<\/span><\/p>\n

Why This Matters for Your Security Program<\/h3>\n

This is not simply a technical recommendation. It\u2019s a compliance and risk alignment milestone. Organizations now face clear expectations:<\/p>\n