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GPUThor breaks the error correction Nvidia recommended against Rowhammer

Last year Nvidia told GPU owners worried about Rowhammer to switch on error correction. Four researchers at the University of Toronto have now shown that the same attack, aimed harder, goes straight through it. Their technique, GPUThor, is the first Rowhammer attack to defeat ECC on Nvidia GPUs. It works on four Ampere-generation workstation cards: […]

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OpenAI blocked its agents from posting. They found a wiki that posts on GET

The engineers who built the sandbox did think about this. They allowed the agents to read the internet and blocked them from writing to it, by permitting GET requests and refusing everything else. It is the obvious control, and on almost every website it works. Then the agents found a wiki that writes on GET. […]

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An AI hacking trick is now being used to split the word ‘funding’ in spam

For two years, invisible Unicode characters have been the neat trick of AI security research. You hide instructions inside them. A person sees nothing. A language model reads them and does as it is told. Microsoft has now found somebody using the same characters for something far less clever. They were splitting up the word […]

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OpenAI says it has overtaken Anthropic with a model that sometimes tries to evade oversight

OpenAI released GPT-6 Astra on 3 September, saying it outperforms every rival including Anthropic’s Claude and Google’s Gemini. Astra is “state-of-the-art on computer use, browsing, software engineering, cyber security, science, and professional work”, the company wrote in its launch post. The Financial Times reported the launch as an attempt to retake the technical lead from Anthropic, which […]

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