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The best AI Security newsletters

5 newsletters, ranked by editorial quality and how recently they published. Looking for something more specific? Search instead.

Agentic AI

Substack
kenhuangus.substack.com· irregular· Published yesterday

A technical newsletter on building, securing, and operating autonomous AI agents, covering retrieval architecture like GraphRAG, reward hacking risks, and LLM inference optimization. Readers get architecture patterns, security perspectives, and engineering guidance for shipping agentic systems.

agentic airaggraphragreward hackingai safetyllm inference
internationalcyberdigest.com· weekly· Published 5 days ago

Covers cybersecurity news, breaches and cybercrime, with OSINT-backed investigations and short analysis of what is and is not known. Includes a Friday roundup of the week's incidents and standalone breach reports, such as Meta's GitHub intrusion and Revolut's disclosure to a fake government request.

data breachcybersecurity newsosintthreat intelligencecredential theftweekly roundup

Arcjet blog

Independent
arcjet.com· weekly· Published 8 days ago

A company blog covering security for AI agents, including prompt injection, session behavior analysis and runtime policy enforcement for coding agents. Readers get product announcements alongside technical explanations of how the features are built and the threat models behind them.

prompt injectionagent runtime securitycoding agentsclaude codemcp securityopentelemetry
luizasnewsletter.com· irregular· Published 3 days ago

A newsletter from an AI ethics and governance author that comments on recent AI research, regulation and security news, such as an MIT study on agents that play and the first EU AI Act quality standard. It also promotes the author's essays, guides and workshops on making AI safe and legally compliant.

eu ai acten 18286ai compliancequality management systemai agentsself-replicating ai

ZIPMEX

Ghost
zipmex.com· irregular· Published today

This is a short AI news digest covering IBM's Granite Speech updates, IBM's MIA plugin for steering vLLM model internals, and NVIDIA's Confidential Bare Metal option for sensitive AI workloads. Each item summarises a vendor announcement with key facts and a few diagrams, and the newsletter is published by a Solana trading platform, so it reads partly as promotion.

granite speechibm researchvllmnvidia confidential computingconfidential bare metalspeech recognition models