A TO Z

AI security glossary

Short, plain definitions of the terms in our briefs and guides. Each one links to the full explainer.

ABCDMPW

A

AI pentesting

Using AI agents to probe a website or system for weak spots the way an attacker would, with the owner’s permission.

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API credential

A secret key that lets software use a paid service on your account. Whoever holds it can run up charges in your name.

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B

Bad bot

Automated traffic that scrapes content, tries stolen passwords or probes for weaknesses, as opposed to useful bots such as search crawlers.

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C

Credential stuffing

Trying username and password pairs leaked from one site against the login pages of other sites, at scale.

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CVE

Common Vulnerabilities and Exposures: a public ID given to a known security flaw, so vendors and admins can refer to the same bug.

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D

Distillation attack

Querying an AI model at scale and using its answers to train a cheaper copy of it, often with someone else’s API credentials.

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M

MCP (Model Context Protocol)

An open standard that lets AI assistants connect to outside tools and data, such as files, databases or a CRM.

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Model extraction

Recreating how an AI model behaves by studying its outputs. Distillation is one way to do it.

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P

Prompt injection

Hiding instructions in text an AI reads, such as a web page, email or document, so it follows the attacker instead of you.

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W

WAF (web application firewall)

A filter in front of your website that blocks known attack patterns and abusive traffic before it reaches your server.

Read more about WAF →