Cyber Roundup
Bob BraggCovers cybersecurity,fraud, and IO
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 92 | Founded | 4 years ago | Last Issue | 3 months ago |
| Active | |||||
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bobbragg.substack.comLatest Issues
QuickLook: ROM - Shadowrun (Sega Genesis, 1994)
How Claude and I tore apart the Shadowrun ROM at the system and byte-structure level — finding cut content, developer easter eggs, and secrets that were never publicly documented
NOTE:
For the actual RE logic start with k...
QuickLook: Claude Opus 4.5 vs GPT-4.5 vs GPT-5.1 System Cards — A Practitioner's Deep Dive
BOTTOM LINE UP FRONT
Three system cards, three philosophies, three generations of capability. Anthropic’s Claude Opus 4.5 (150 pages) reads like a security researcher’s threat assessment of their own model—probing for deception, sabotage,...
QuickLook: Claude Opus 4.5 System Card — Operational OSINT for Advanced Prompting
Bottom Line Up Front (BLUF):
Anthropic just dropped a 150-page technical disclosure on Claude Opus 4.5 that’s worth reading if you’re building OSINT automation or using the model for analytical production. The buried lead: an “effort” par...
QuickLook: The PERSONA HUB Pipeline - Tencent's Billion-Identity Arsenal & The GoLaxy Connection
BACKGROUND:
Leaked GoLaxy Documents Expose China's AI-Powered Precision Propaganda Machine
NOTE:
While no direct evidence confirms this connection, the parallels are striking enough to warrant consideration. Tencent's PERSONA HUB, c...
QuickLook: Villager’s RAG-Driven Exploit Library & Cyber Attack Chain
BLUF
Villager's exploit knowledge base is not just a static database but a dynamic, AI-powered retrieval system that combines SQLite storage, TF-IDF indexing, FAISS vector embeddings, and LangChain orchestration to create a continuously...
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Authors
The writers behind this newsletter.
Senior data analyst focused on cyber geopolitics, APT tracking, and persona-based social engineering. Develops OSINT tools and maps digital influence operations through threat profiling and emerging exploit research.
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