A daily briefing for security leaders that picks five top cybersecurity stories, such as breaches, exploited vulnerabilities and supply-chain compromises, and adds a short take on why the day matters. Each item links to a source and carries a brief, opinionated framing for CISOs.
Website: https://www.secretciso.org/
Cisco Talos publishes threat research, vulnerability disclosures and analysis of attacker campaigns, with 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.
A researcher's blog publishing technical reverse-engineering reports on spyware, Android surveillance platforms and state-linked malware such as Kimsuky's EndClient RAT, with IOCs. It also offers essays on the power dynamics of threat intelligence and the role of civil society in spyware research.
A threat intelligence newsletter that turns recent public reporting on cyber operations, espionage and exploitation into prioritized judgments for defenders. Each issue separates what is known from what is plausible and ends with a concrete check or decision for security teams.
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