The CyberGuard field guide

Cybersecurity,
explained clearly.

A practical dictionary for the language behind digital safety. Start with a question, follow a topic, or browse the full collection.

151 published definitions20 security topicsExamples and source links on every page

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Terms beginning with H

2 definitions found.

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Web Application Security

HTTP Security Headers

HTTP security headers are response fields that tell browsers how to apply selected protections when handling a page.

AI Security

Hallucination

An AI hallucination is a generated statement presented as if factual even though it is unsupported, incorrect, or invented.