Best Cybersecurity Risks Newsletters in 2026

SubstackEvery two weeks · last post Sep 1, 2026

Independent reporting and analysis on AI security, agent behaviour, jailbreaks, escapes, AI incidents, safety, AI crimes and the darker side of powerful models. Written by an outsider watching the frontier closely.

Likely audience: AI researchers

SubstackWeekly · last post 6 days ago

From recent posts: This newsletter summarizes recent developments in data protection and digital compliance, covering new guidelines from Turkish authorities, EU regulatory updates, enforcement actions against companies like Google and ba…

Likely audience: Data Protection Officers

SubstackEvery two weeks · last post Sep 12, 2026

From recent posts: Arthur’s Newsletter publishes a mix of AI security analysis and macroeconomic commentary. Recent issues examine how state-sponsored actors circumvent AI geographic restrictions for malicious purposes, and how America's…

Likely audience: AI safety researchers

LinkedInEvery two weeks · last post 27 days ago

I will share strategies to help CEOs manage AI and cyber risks.

Likely audience: Board members

LinkedInMonthly or less · last post 21 days ago

MA Head Quarter

Likely audience: Financial regulators

Substacklast post Jul 29, 2026

From recent posts: The article discusses Anthropic's leaked unreleased AI model Mythos (Claude Mythos Preview), its extreme capability at finding software vulnerabilities, and the launch of Project Glasswing, a coalition with major tech p…

Likely audience: CEOs and board members