2026-11-04 · Fonte：deep-siliconangle.com/feed/?paged=6
An open letter from OpenAI Group PBC, Anthropic and 100-plus banks, insurers, technology firms and security vendors says defenders face a narrow window to prepare for AI-enabled attacks.
OpenAI Group PBC has published an open letter, signed alongside Anthropic by more than 100 technology companies, banks, insurers and security vendors, warning that cyberattacks powered by artificial intelligence are set to grow dramatically in prevalence within a matter of months. The letter opens with a blunt assessment: "We have a limited window to strengthen cyber defenses."
The scale of the coalition behind the warning is notable. Alongside OpenAI and Anthropic, the signatory list draws on more than 100 organizations spanning technology companies, banks, insurers and security vendors — a cross-section of industries with a direct stake in cyber defense readiness. The core claim is specific about timing: the signatories expect AI-enabled attacks to surge in prevalence not over years, but within months, leaving defenders only a short stretch in which to complete their preparations.
The opening line of the letter carries the urgency. By framing the moment as a "limited window to strengthen cyber defenses," OpenAI Group PBC and its co-signatories position the coming months as the period in which defensive preparations must be completed. The composition of the signatory list is itself part of the message: with banks, insurers and security vendors standing alongside the AI developers, the warning is aimed at an audience that spans the entire cyber defense ecosystem rather than a single industry.
For security teams and the vendors that supply them, the letter's timeline is the central takeaway: the signatories are not describing a distant scenario but one they expect to materialize within months, with the preparation window characterized as limited. The letter, published by OpenAI Group PBC with Anthropic and more than 100 other organizations, frames the period immediately ahead as the time defenders have to act.
Tags: OpenAI · Anthropic · AI Cybersecurity · Open Letter
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