Matthew Green
Person on 4 sites
Cryptographer and professor at Johns Hopkins University
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6 facts on wiqqi (opens wiqqi.app)
Who people, organisations and podcasts are, and how they connect, with sources.
Updated 2026-11-01 -
3 channels on ppll (opens ppll.app)
Where public figures publish, and what they are on record saying.
Updated 2026-11-02 -
16 beliefs on korrents (opens korrents.com)
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Guarding a sandboxed AI model with a weaker monitoring model leaves the alignment problem unsolved, because the guard model still has to be trusted. (opens korrents.com)
“a warden-guarded sandbox is just another version of the alignment problem. You're going to have to trust a model to do it, and that model will need to be at least some fraction as intelligent as the model it's guarding.”
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AI agents cannot be perfectly isolated if they are to be useful, because their usefulness depends on access to information. (opens korrents.com)
“you can't perfectly isolate agents, at least not if you expect them to do useful things. Agents are most useful when they have access to information.”
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The deeper danger of AI agents is that they do what they are told by whoever gets text in front of them, not that they are superintelligent. (opens korrents.com)
“Forget the swarms and the super-intelligence. What OpenAI really learned this summer is much worse: its agents will do what they're told by whoever manages to get text in front of them.”
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Guarding a sandboxed AI model with a weaker monitoring model leaves the alignment problem unsolved, because the guard model still has to be trusted. (opens korrents.com)
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5 recommendations on rcmnd (opens rcmnd.app)
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Security Engineering (opens rcmnd.app)
“Security Engineering by Ross Anderson. If you're designing or analyzing security systems and haven't read this book, you need to do so immediately. Anderson is a cryptographer, security expert and all-around savant.”
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The Handbook of Applied Cryptography (opens rcmnd.app)
“The Handbook of Applied Cryptography (aka the HAC), by Menezes, van Oorschot and Vanstone. One of the fundamental textbooks in this area. Covers basic theory, symmetric and asymmetric cryptography, and protocols. This…”
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Introduction to Modern Cryptography (opens rcmnd.app)
“Introduction to Modern Cryptography by Jonathan Katz and Yehuda Lindell. We use this as a core text at Hopkins. A fantastic mix of practical and theoretical crypto.”
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Security Engineering (opens rcmnd.app)