Late October 2025 Cyber Threat Reports

**Executive summary:** This is a consolidated threat intelligence roundup covering a wide range of active security events and research from October 2025, including nation-state APT activity (e.g., APT35, DPRK-linked groups), major data breaches and extortion (Harvard/Cl0p, Red Hat/ShinyHunters, F5 support-platform breach), kernel and enterprise product zero-day/exploit analyses (NVIDIA GPU driver, Oracle EBS CVE-2025-61884), and multiple malware/campaign reports (infostealers, PhantomVAI loader, Android banking trojan, phishing campaigns).