Matheus Theodoro

AI Security 12 min read

Every Defense Misses the Second Turn

I ran 12 agentic defense systems against a two-turn attack. Every one of them failed. Here's the vulnerability they all share and the architectural fix that closes it.

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Research 20 min read

Adversarial Prediction Models for Learning-Augmented Algorithms

A position paper arguing that predictions used by learning-augmented algorithms should be treated as untrusted algorithmic inputs, not neutral estimates. Maps adversarial machine learning threat models into algorithm design and proposes benchmark dimensions for robust, security-aware online decision-making.

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