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A list of things to block (domains, IPs, apps).

Definition

A blocklist is a list of known bad items—like phishing domains or malicious IPs—that a system blocks automatically.

In plain English A list of things to block (domains, IPs, apps).

Why this matters

Why it matters: It can prevent you from connecting to known threats, reducing privacy and security risks.

Example

Example: A browser blocks a known phishing website.