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The best Cyber Security newsletters

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

offensiveosint.io· irregular· Published 2 months ago

A technical OSINT newsletter in which the author walks through data-driven investigations, scraping and cross-referencing public registries, and interactive visualizations, with an occasional experiment in AI-driven trading. Readers get hands-on methods, tooling notes and write-ups of investigations such as Warsaw short-term rental ownership.

osintdata-driven investigationsopen source intelligencescrapingdata visualizationd3 visualization
thedecisionlayer.online· weekly· Published 2 days ago

Each issue presents a short case study of a governance failure or success, such as a slow board response to a supply chain disruption or late risk input to a strategic decision, and draws a lesson for executives. It then offers a framework and a practical test that readers can apply to their own organisation.

board governancedecision intelligenceenterprise risk managementthird-party riskinternal auditregulatory findings