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All news with #ai guardrails tag

44 articles · page 3 of 3

Prompt Injection via Macros Emerges as New AI Threat

🛡️ Enterprises now face attackers embedding malicious prompts in document macros and hidden metadata to manipulate generative AI systems that parse files. Researchers and vendors have identified exploits — including EchoLeak and CurXecute — and a June 2025 Skynet proof-of-concept that target AI-powered parsers and malware scanners. Experts urge layered defenses such as deep file inspection, content disarm and reconstruction (CDR), sandboxing, input sanitization, and strict model guardrails to prevent AI-driven misclassification or data exposure.
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Cloudy-driven Email Detection Summaries and Guardrails

🛡️Cloudflare extended its AI agent Cloudy to generate clear, concise explanations for email security detections so SOC teams can understand why messages are blocked. Early LLM implementations produced dangerous hallucinations when asked to interpret complex, multi-model signals, so Cloudflare implemented a Retrieval-Augmented Generation approach and enriched contextual prompts to ground outputs. Testing shows these guardrails yield more reliable summaries, and a controlled beta will validate performance before wider rollout.
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Portkey Integrates Prisma AIRS to Secure AI Gateways

🔐 Palo Alto Networks and Portkey have integrated Prisma AIRS directly into Portkey’s AI gateway to embed security guardrails at the gateway level. The collaboration aims to protect applications from AI-specific threats—such as prompt injections, PII and secret leakage, and malicious outputs—while preserving Portkey’s operational benefits like observability and cost controls. A one-time configuration via Portkey’s Guardrails module enforces protections without code changes, and teams can monitor posture through Portkey logs and the Prisma AIRS dashboard.
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Defending Against Indirect Prompt Injection in LLMs

🔒 Microsoft outlines a layered defense-in-depth strategy to protect systems using LLMs from indirect prompt injection attacks. The approach pairs preventative controls such as hardened system prompts and Spotlighting (delimiting, datamarking, encoding) to isolate untrusted inputs with detection via Microsoft Prompt Shields, surfaced through Azure AI Content Safety and integrated with Defender for Cloud. Impact mitigation uses deterministic controls — fine-grained permissions, Microsoft Purview sensitivity labels, DLP policies, explicit user consent workflows, and blocking known exfiltration techniques — while ongoing research (TaskTracker, LLMail-Inject, FIDES) advances new design patterns and assurances.
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