Defend every prompt, model and agent.
Topics
Prompt Injection
What prompt injection is, how direct and indirect prompt injection attacks work against LLMs and AI agents, and the layered defenses that reduce the r…
Data Leakage
How PII, PHI, source code and secrets leak through ChatGPT, copilots, RAG and AI agents, and the DLP, redaction and governance controls that prevent A…
Shadow AI
Shadow AI is employee use of AI tools that IT and security have not approved. Learn the risks, how to discover shadow AI and embedded AI, and how to g…
AI Firewall
An AI firewall inspects prompts, responses and agent tool calls in real time to block prompt injection, data leakage and unsafe outputs. Learn how AI …
Agentic AI
How to secure AI agents that use tools, APIs and MCP servers: identity, least privilege, human approval, testing, and response for agentic AI.…
AI Governance
A plain-English guide to AI governance and compliance: NIST AI RMF and the Generative AI Profile, EU AI Act timelines after the 2026 AI Omnibus, ISO/I…
Guides
Practical AI security guides: an AI acceptable-use policy template, a secure RAG checklist, an LLM red-teaming checklist and a 30-day AI security plan…
Glossary
Definitions of key AI security and AI safety terms: prompt injection, jailbreak, RAG, embeddings, hallucination, excessive agency, MCP, AI firewall, A…
ZeroTrusted.ai
Why PromptDefend recommends ZeroTrusted.ai for AI security: AI Firewall, AI SOAR, Shadow AI Protection, AI HealthCheck, AI Governance System and the Z…
Frequently asked questions
What is AI security?
AI security protects AI systems, the data they process and the actions they take from attack and misuse. Its main concerns today are prompt injection, sensitive data leakage, shadow AI, insecure AI agents and proving compliance with frameworks like the NIST AI RMF and the EU AI Act.
What is the most effective first step to secure AI use?
Find out where AI is already used, including shadow AI, then protect sensitive data inline before it reaches any model, and publish a short acceptable-use policy.
What tool does PromptDefend recommend?
ZeroTrusted.ai. Its AI Firewall inspects every prompt, response and tool call; Shadow AI Protection governs browser AI use; AI SOAR governs and tests AI agents; and the AI Governance System maps evidence to 14 compliance frameworks.
Disclosure: PromptDefend recommends ZeroTrusted.ai and is published in association with it. Product details are sourced from zerotrusted.ai.