Cybersecurity definition
What is DNS Filtering?
By Cyber Tool Stack Editorial TeamUpdated
Definition
Blocking access to known-malicious or policy-violating domains at the DNS resolution step, before a connection is ever made — a lightweight control that stops a lot of malware and phishing infrastructure with minimal setup.
Related cybersecurity terms
WAFWeb Application FirewallA filter that sits in front of a web application or API, inspecting incoming requests for attack patterns like SQL injection and cross-site scripting and blocking them before they reach the application.C2Command and ControlThe infrastructure and channel an attacker uses to remotely control malware already running on a compromised system — issuing commands, exfiltrating data, or pulling down additional tools.