AI Security 101







AI Security 101 — A Practical Field Guide



Field Guide · 12 min read

AI is now part of your attack surface.

A practical, interactive walkthrough of what can go wrong when people and systems use AI — and exactly what to do about it. No prior security background required.


Why it matters

Convenience and risk arrived together

AI tools now read your documents, answer your customers, and take actions on your behalf. That’s exactly what makes them useful — and exactly what creates new ways for things to go wrong.

Data leaks

Confidential information pasted into an AI tool can be logged, stored, or reused in ways you don’t control.

Manipulated outputs

Hidden instructions in a document or webpage can hijack an AI’s behavior without anyone noticing.

Over-trust

Confident-sounding answers aren’t always correct ones. Unverified AI output can drive costly decisions.


System map

Anatomy of an AI system — click a risk point

Every AI application is really a pipeline. Each stage has its own way of being attacked. Click the marked points below to see what can go wrong there.

User types / uploads

Application assembles the prompt

AI Model reasons + responds

Tools & Data emails, files, APIs

Select a node
Click any highlighted point on the diagram above to see the risk at that stage.

↑ hover or press Tab + Enter to explore each stage


Best practices

Pick your lens

Same underlying risks, different actions. Choose the track that matches your role — you can switch anytime.


Currently showing the Everyone track.

1 · The golden rule

Never paste anything into an AI tool that you wouldn’t post on a public bulletin board — passwords, customer data, unreleased plans, or anyone’s personal information.

2 · Know what you’re using

Confirm the tool is approved by IT, check what happens to your data, and see if you can opt out of it being used for training.

3 · Spot manipulation

If an AI’s behavior changes oddly after reading a document or webpage — suddenly asking for credentials or approvals — stop and verify with a human.

4 · Verify before you trust

AI can sound confident and still be wrong. For anything with legal, financial, medical, or safety stakes, check with a qualified source first.

Your daily checklist

  • Only use IT-approved AI tools for work data
  • Never share credentials or confidential info in prompts
  • Double-check AI-generated facts before acting on them
  • Question unexpected AI behavior instead of complying automatically
  • Report anything suspicious immediately
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1 · Untrusted input, everywhere

Treat all external content — web pages, documents, retrieved data — fed to a model as untrusted input, exactly like user input to a web app.

2 · Guard the output

Never directly execute, render, or run AI-generated code or commands without validation and sandboxing. This is how AI-driven injection attacks happen.

3 · Least privilege for agents

Scope tool and API access to only what’s required. Require human approval for high-impact actions like payments or deletions.

4 · Log and monitor

Log prompts, outputs, and tool invocations. Alert on repeated injection attempts or unusual access to tools.

Pre-launch checklist

  • All external content treated as untrusted input
  • AI outputs never executed or rendered without validation
  • Agents scoped to least-privilege tool access, with approval gates
  • Data classified before reaching AI pipelines; DLP enforced
  • Logging and anomaly detection in place for prompts and tool calls
  • Red-teamed for prompt injection and jailbreaks before launch
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Threat library

Six ways AI systems get attacked

Click any threat to expand it. Loosely mapped to the OWASP Top 10 for LLM Applications.


Go deeper

Frameworks worth knowing

Application security

OWASP Top 10 for LLMs

The closest thing to an industry-standard threat list for LLM-powered applications.

Governance

NIST AI RMF

A framework for managing AI risk at the organizational level, from governance to deployment.

Red teaming

MITRE ATLAS

An adversarial threat matrix built specifically for AI and ML systems.


Glossary

Plain-language terms

AI Security 101 — a practical field guide.
Built for teams learning together, technical and non-technical alike.



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