Omar Ωr Santos
@santosomar
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Cybersecurity, AI security research, bug hunting, IR, threat intel, @redteamvillage_ lead. @Cisco PSIRT. Prior @USMC. Author of over 25 books.
Ring0
Joined March 2009
A very clever and innovative way to get customer feedback and amazing perspectives. Kudos to @AnthropicAI
We’re launching Anthropic Interviewer, a new tool to help us understand people’s perspectives on AI. It’s now available at https://t.co/W8P36sPQBy for a week-long pilot.
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Read our full announcement: https://t.co/Lg1XzSvSId
#CoSAI #AISecurity #cybersecurity #ModelSigning #IncidentResponse #opensource #OASIS #openstandards #collaboration
oasis-open.org
Boston, MA – 18 November 2025 – OASIS Open, the international open source and standards consortium, announced the release of two critical publications advancing AI security practices from the...
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→ AI Incident Response: Handle threats like prompt injection and data poisoning: https://t.co/nP3WgdMDka
github.com
Repository for CoSAI workstream 2, Preparing Defenders for a Changing Cybersecurity Landscape - cosai-oasis/ws2-defenders
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The Coalition for Secure AI (CoSAI), an OASIS Open Project, has released two frameworks every AI team should know about. Developed by 40+ industry leaders. Available now on GitHub. → Model Signing: Verify AI model integrity before deployment:
github.com
Repository for CoSAI Workstream 1, Software Supply Chain Security for AI Systems - cosai-oasis/ws1-supply-chain
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Cisco has announced its intent to acquire @neuralfabric. Learn how this will further expand Cisco’s deep bench of AI engineering talent and accelerate innovation across Cisco’s AI software and platforms ➡️ https://t.co/J0SkPFFmI3
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Families of 4 in 2025 paid the following for their healthcare as members of CrowdHealth: Jan - $475 Feb - $460 March - $445 April - $460 May - $505 June - $505 July - $445 Aug - $475 Sept - $475 Oct - $475 Nov - $505 Dec - $490 Total - $5,715 Members pay the first $500 of any
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LIVESTREAM ALERT 🚨 Join us tomorrow to talk about "Vibe Coding" security. Project CodeGuard is an open-source, model-agnostic security framework that embeds secure-by-default practices into AI coding agent workflows. It provides comprehensive security rules that guide AI
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🔥 Cisco's Recent Open Source AI Projects I am extremely proud that @Cisco is leading the charge with a remarkable suite of open source AI projects. These initiatives aren’t just research experiments; they’re production-ready tools that address critical challenges in AI
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Getting tons of good results and use cases from Project CodeGuard >>
github.com
Project CodeGuard is an AI model-agnostic security framework and ruleset that embeds secure-by-default practices into AI coding workflows (generation and review). It ships core security rules, tran...
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💥 Don't Vibe Code security vulnerabilities in your code! Software teams worldwide are increasingly turning to AI coding agents to enhance efficiency and streamline code development. However, the rapid adoption of AI-generated code has outpaced security measures, leading to
blogs.cisco.com
Software teams worldwide now rely on AI coding agents to boost productivity and streamline code creation. But security hasn’t kept up. AI-generated code
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Read the blog post here: https://t.co/MJKE5xSJ64 Read the paper on GitHub:
github.com
Repository for CoSAI Workstream 1, Software Supply Chain Security for AI Systems - cosai-oasis/ws1-supply-chain
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The Coalition for Secure AI (#CoSAI), an OASIS Open Project, has published a new collaborative paper, 'Signing ML Artifacts: Building towards tamper-proof ML metadata records,' which introduces model signing as a foundational concept to securing the AI supply chain.
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I encourage you to read our latest strategic update at the Coalition for Secure AI (CoSAI). These are profound questions about everything from AI identity to the very nature of cyber warfare. We're not just building new tools, we're building a new world… one that requires a new
AI is reshaping security faster than most organizations can keep up. The #CoSAI Strategic Update September 2025 outlines what’s changing, what’s coming next, and how we can prepare together. https://t.co/ia7XGRVitN
#AI #secureAI #collaboration #AIsecurity
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AI is reshaping security faster than most organizations can keep up. The #CoSAI Strategic Update September 2025 outlines what’s changing, what’s coming next, and how we can prepare together. https://t.co/ia7XGRVitN
#AI #secureAI #collaboration #AIsecurity
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A significant milestone for AI security: @Google has donated its Secure AI Framework (SAIF) data to the Coalition for Secure AI (CoSAI), an OASIS Open Project.
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The @RedTeamVillage_ was the ultimate hub for offensive security topics at #DEFCON33. 🥷 🔴 Talks, workshops & CTF by @NahamSec, @0dayCTF, @InsiderPhD, @santosomar, @hAPI_hacker, @MeganSquire0, @GrahamHelton3, and others. Explore all @DEFCON villages! ➡️ https://t.co/sxs3HBi1At
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It was amazing time to see much friends on @RedTeamVillage_ and @ICS_Village at @defcon .. I hope see you guys soon 🫡🫡🤩🤩🫶🫶 @Jhaddix, @brysonbort, @santosomar and @Infosecpat You rock guys 🤩
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Welcome OpenAI's gpt-oss! ollama run gpt-oss:20b ollama run gpt-oss:120b 🧵
Our open models are here. Both of them. https://t.co/9tFxefOXcg
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👀 Ready to hack your way to victory? Red Team CTF is back at @DEFCON! 🔥 This is an in person event at the Las Vegas Convention Center - West, at the end of Hall 1. Please pre-register for the CTF: https://t.co/vVeHESdHTV
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Enter the Grid. 🔷⚡ The Red Team Village schedule for @defcon 33 is live — packed with workshops, tactics, and CTFs that’ll light up your circuitry. Sync with the system 👉 https://t.co/EhyjeaKJtX
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