LLM Security
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How to Detect LLM Jailbreak Attempts: A 5-Layer Stack
Detect LLM jailbreaks in five layers: normalized signatures, perplexity scoring, input classifiers, output classifiers and per-session telemetry.
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Open Source LLM Security Tools: Licensing and Cost
Open source LLM security testing tools compared on license and self-hosting cost: garak, PyRIT, promptfoo, and Meta's Purple Llama safeguards.
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LLM Red Teaming Tools Compared: Garak, PyRIT & More
Compare Garak, PyRIT, Promptfoo and Giskard by license, interface, multi-turn support, CI fit, deployment scope and documented LLM security coverage.
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Lethal Trifecta and CaMeL: Containing Agent Injection
The lethal trifecta explains why agents get exfiltrated, and CaMeL shows what containment by construction looks like. Both are architecture, not prompting.
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Best LLM Guardrail Tools 2026: A Practitioner's Comparison
A technical comparison of the best LLM guardrail tools 2026: NeMo Guardrails, LLM Guard, Lakera, Guardrails AI, and Azure Content Safety, with benchmarks.
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How LLM Jailbreaks Work: Techniques and Success Rates
A practitioner's breakdown of how LLM jailbreaks work, from roleplay conditioning to multi-turn manipulation, with attack success rates from research.
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LLM Defense Stack: Guardrails, Tool Scoping, and Egress
An LLM defense stack maps jailbreaks and prompt injection to guardrail models, scoped tools, least privilege, egress controls, and human approval.
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Why LLM Jailbreaks Work: 2 Safety Training Failures
LLM jailbreaks exploit competing objectives and gaps between model capability and safety training. Learn the two failure modes and what defenders can do.
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Garak in 2026: what it's actually good for, what it isn't
An honest review of NVIDIA's Garak LLM vulnerability scanner: what its probes catch, where the noise is, and where it fits in a real testing pipeline.
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LLM Agent Hijacking: Tool Abuse from Injected Content
Tool-using LLM agents get hijacked by the content they read. The exploit classes that have hit production agents, and the patterns that contain them.
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Model Behavior Fingerprinting: Identifying a Wrapped LLM
Before attacking an LLM app you need to know which model is under the hood. A walkthrough of behavioral fingerprinting and what each signal reveals.
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Multi-Turn Role-Play Attacks: Why One Safe Turn Gets Unsafe
Crescendo, many-shot and gradual context manipulation: how multi-turn jailbreaks evade single-turn classifiers, and what still lands against defenses.
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Multimodal Jailbreaks: Image and Audio Attack Surfaces
Vision and audio inputs are a separate attack channel from text. A survey of the multimodal jailbreaks that still land, from typographic to audio carriers.
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Hardening RAG Pipelines Against Prompt Injection
Retrieval pulls attacker-controlled text into the model's prompt. A defender's guide to where RAG injections land in production and how to contain them.
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System Prompt Extraction: Techniques and Defenses
How system prompts get exfiltrated from production LLM apps: direct extraction, indirect inference, behavioral fingerprinting, and what actually works.
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10 LLM Jailbreak Technique Classes and Defenses
A source-based taxonomy of ten LLM jailbreak classes, how each attack surface works, and the defensive controls and benchmarks used to evaluate it.