The latest update to DNS security guidance from the National Institute of Standards and Technology (NIST) marks a new in how organizations are expected to secure one of the internet’s most critical systems. Published as NIST SP 800-81r3, this revision replaces the previous 2013 version, ending a gap of more than twelve years without major federal updates in this area. 

DNS, or the Domain Name System, plays a foundational role in virtually every network connection. Despite this, its security practices have historically lagged behind other parts of enterprise infrastructure. With SP 800-81r3, NIST brings modern threats, technologies, and operational realities into focus, offering updated DN...