116 Companies Including Visa, Mastercard, Shopify, Capital One and GM Signed a Joint Call for AI Cyber Defense
OpenAI published "A call for collective action on cyber defense" on 2026-08-27, co-signed by Anthropic, Google, Microsoft, Amazon, Cisco, Oracle, Cloudflare, CrowdStrike and Palo Alto Networks, and by non-tech signatories including Capital One, Mastercard, Visa, General Motors and Shopify, for 116 organizations total. The letter argues there is a "limited window," possibly only months, before AI-enabled attacks scale against hospitals, water treatment and core internet infrastructure, and sets three principles: current security practice is insufficient, defenders need cyber-capable AI, and the response has to be collective. The signature list is the signal here, since payments and commerce platforms rarely co-sign frontier-lab policy documents.
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