More than 100 organizations, including OpenAI and Anthropic, signed an open letter in San Francisco calling for a global response to AI-powered cyber threats. The letter says there is a limited window to strengthen cyber defenses and urges governments, technology providers, and frontier AI developers to coordinate action. It also cites recent testing incidents involving OpenAI and Anthropic models. The letter does not propose specific funding amounts.

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SAN FRANCISCO — More than 100 organizations around the world, including ChatGPT-maker OpenAI and rival Anthropic, have signed an open letter calling for a global effort to "strengthen cyber defenses" against AI-powered cybersecurity threats.

"We have a limited window to strengthen cyber defenses," the letter says.

"In the coming months, AI-enabled cyber attacks will become far more widespread and sophisticated as models around the world become increasingly capable."