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Security Blog
Expert insights on AI security, cybersecurity best practices, and cutting-edge security tools
Latest Blog Articles
Prompt Leaking: How System Prompts Leak and How to Stop It
RESK Research Team8 min read
Prompt LeakingSystem PromptsResearch
How attackers extract system prompts and sensitive context — refusal loops, encoding tricks, context switching — and the defenses that work: canary tokens, output filtering, generation-time enforcement.
ReskSafety: The Deployable Open-Source LLM Firewall
RESK Security Team6 min read
ReskSafetyLLM FirewallDemo
Meet ReskSafety: an OpenAI-compatible LLM firewall with RBAC capability bitmasks, editable filtering policies, multi-provider routing, and a full admin console. Try it live at demo.resk.fr.
A step-by-step guide to deploying ReskSafety — an open-source, OpenAI-compatible LLM firewall — on your own infrastructure with Docker Compose, from clone to enforced policies.
Capability Bitmasks: Real RBAC for LLM Applications
RESK Research Team6 min read
RBACAccess ControlConcepts
Why LLM apps need per-user permission enforcement, and how 64-bit capability bitmasks enforce least privilege at the token level — so unauthorized content is never generated.
8 Open Source Libraries to Secure Your LLM Applications
RESK Security Team5 min read
Open Sourceresk-llmLLM Security
Discover the RESK open-source ecosystem: 8 free libraries to secure your LLM applications across Python, TypeScript, and Bun. Free on GitHub, PyPI, and npm.
AI Red Teaming: The Complete Guide to LLM Security Testing
RESK Security Team9 min read
AI Red TeamingLLM SecurityAdversarial Testing
Master AI red teaming: adversarial testing techniques, prompt injection simulations, jailbreak detection, and how to harden LLM applications against real-world attacks.
MCP Security: Protecting AI Agents from Model Context Protocol Threats
RESK Research Team7 min read
MCP SecurityAI AgentsTool Security
Understand the security risks of the Model Context Protocol and how resk-mcp protects AI agents from tool-based attacks and prompt injection through tool outputs.
End-to-End Encryption for AI Conversations: The ReskCrypt Approach
RESK Research Team6 min read
AI EncryptionReskCryptData Privacy
Protect sensitive AI conversations with end-to-end encryption. Discover ReskCrypt's cryptographic approach to LLM data privacy and policy-based access.
Comprehensive guide to implementing robust security measures for AI applications. Covers threat landscape, secure architecture, and the RESK Security Framework for enterprise environments.
Understanding and Preventing Prompt Injection Attacks
RESK Research Team8 min read
LLM SecurityResearchThreat Analysis
In-depth analysis of prompt injection vulnerabilities in large language models. Research findings on attack vectors, detection methods, and effective prevention strategies.
Implementing Zero Trust principles in AI systems. Research on trust boundaries, continuous verification, and securing AI workloads in modern enterprise environments.
Establishing robust governance frameworks for enterprise AI deployments. Research on risk management, compliance requirements, and organizational best practices.