# Prompt Shields — llms.txt # https://llmstxt.org > Prompt Shields is the AI discovery and observability platform for enterprises. > We help security teams detect shadow AI usage, enforce LLM guardrails, and > maintain compliance with frameworks including the EU AI Act, ISO 42001, and SOC 2. > Based in Oslo, Norway and London, UK. Backed by Antler and Innovation Norway. ## What We Do Prompt Shields gives CISOs and AI governance teams full visibility over how AI is being used inside their organisation — including unauthorised "shadow AI" tools that bypass security controls. Our platform intercepts and analyses LLM interactions in real time, detecting prompt injection attacks, data leakage, policy violations, and compliance risks before they cause harm. ## Products - **Atlas AI Insight Platform** — Enterprise AI Security Posture Management (AI-SPM). Maps every AI use case across the organisation, assesses risk, assigns ownership, and tracks compliance readiness. URL: https://promptshields.com/platform/ai-spm - **Promptly** — AI writing assistant and guardrail layer for employees. Native macOS/Windows apps and Chrome/Edge browser extensions that protect staff when using ChatGPT, Copilot, and other AI tools. URL: https://promptshields.com/platform/promptly - **Developer SDK** — API gateway and guardrail middleware for AI product teams. Built on Portkey. Drop-in protection for Azure OpenAI, AWS Bedrock, and direct model APIs. URL: https://promptshields.com/platform/developer-sdk ## Free Tools - AI Policy Generator: https://promptshields.com/tools/policy-generator - Prompt Safety Scorer: https://promptshields.com/tools/prompt-scorer - PII Anonymiser: https://promptshields.com/tools/pii-anonymiser - AI Readiness Assessment: https://promptshields.com/tools/readiness-assessment ## Key Concepts We Cover - Prompt injection attacks and defences - LLM security best practices - AI red teaming and adversarial testing - AI governance and risk management - EU AI Act compliance and AI regulation - Shadow AI detection and inventory - PII redaction for LLM pipelines - AI Security Posture Management (AI-SPM) - OWASP LLM Top 10 - AI usage policy creation - LLM guardrails in production - Agentic AI security ## Blog & Resources Blog: https://promptshields.com/blog Case Studies: https://promptshields.com/resources/case-studies FAQ: https://promptshields.com/faq ### Featured Articles - **Prompt Injection Attacks: The Complete Guide (2026)** Comprehensive guide to prompt injection — types, real-world examples, OWASP LLM Top 10, and prevention. URL: https://promptshields.com/blog/prompt-injection-attacks-complete-guide - **LLM Security Best Practices: A Complete Guide for 2026** Seven essential practices for securing large language models in production — threat models, input controls, monitoring, and red teaming. URL: https://promptshields.com/blog/llm-security-best-practices - **AI Red Teaming: How to Test Your LLMs for Security Vulnerabilities** Practical guide to AI red teaming methodology, what to test, tooling, and how often to run exercises. URL: https://promptshields.com/blog/ai-red-teaming-guide - **EU AI Act Compliance: What AI Teams Need to Know in 2026** Risk tiers, key obligations, documentation requirements, and practical compliance steps for the EU AI Act. URL: https://promptshields.com/blog/eu-ai-act-compliance-guide - **NIST AI RMF: A Complete Implementation Guide for 2026** How to implement the NIST AI Risk Management Framework — GOVERN, MAP, MEASURE, MANAGE functions, profiles, tiers, and practical roadmap. URL: https://promptshields.com/blog/nist-ai-rmf-implementation-guide - **ISO 42001: The AI Management System Standard Explained** What ISO 42001 requires, how it is structured, how to achieve certification, and how it compares to ISO 27001 and the EU AI Act. URL: https://promptshields.com/blog/iso-42001-ai-management-system-guide - **EU AI Act, NIST AI RMF, and ISO 42001: How They Compare and Fit Together** Side-by-side comparison of the three major AI governance frameworks, where they overlap, where they diverge, and how to build one compliance programme that satisfies all three. URL: https://promptshields.com/blog/ai-governance-frameworks-comparison - **AI Governance: Future Strategies for Enterprise AI** Strategic guide to building AI governance frameworks for enterprise organisations. URL: https://promptshields.com/blog/ai-governance-future-strategies - **Defending Against Prompt Injection in Production** Technical deep-dive on production-grade prompt injection defences. URL: https://promptshields.com/blog/defending-against-prompt-injection - **LLM Guardrails in Production** How to implement and maintain LLM guardrails at scale. URL: https://promptshields.com/blog/llm-guardrails-in-production ## Contact Website: https://promptshields.com Book a call: https://app.apollo.io/#/meet/pb2-7zj-h9q/30-min GitHub: https://github.com/Bit-Pulse-AI