Cisco Talos publishes threat research, vulnerability advisories and analysis of emerging attack trends, including detection and coverage guidance for Cisco customers. Recent posts cover critical PHP flaws, abuse of legitimate platforms for phishing delivery, and the surge in AI-discovered vulnerabilities.

Long-form technical threat research from an independent researcher covering commercial Android spyware, a North Korean RAT targeting human rights defenders, and civil society's access to threat intelligence. The writing combines reverse-engineering detail with advocacy about democratising security research.

404 Media is an independent tech journalism outlet whose newsletter covers investigative stories on surveillance, identity theft, fraud, and the physical impacts of technology such as data centers. Readers get long-form reporting that centers affected people and digs into how systems fail in practice.

A threat intelligence newsletter that turns recent public reporting on cyber espionage, exploitation and state-linked contractors into strategic judgments for defenders. Each issue separates what is known from what is plausible and ends with a concrete check or decision for security teams.