OpenAI, Google, Anthropic and over 100 companies unite to fight AI cyber threats, sign open letter
Follow UsMore than 100 technology companies have signed an open letter to call for stronger action against AI-powered cyber threats
OpenAI, Google, Anthropic and Microsoft are among the signatories.
Major cybersecurity firms such as CrowdStrike, Okta and Fortinet have also backed the letter.
More than 100 technology companies have joined forces to call for stronger action against AI-powered cyber threats. The companies, including OpenAI, Google, Anthropic and Microsoft, have signed an open letter urging businesses and governments to work together to improve cybersecurity as AI becomes more powerful. Major cybersecurity firms such as CrowdStrike, Okta and Fortinet have also backed the letter. Several financial institutions and internet infrastructure companies are among the signatories as well.
SurveyThe letter calls for new ways to defend against AI-based attacks and asks governments at the local, national and international levels to work together to protect critical services and infrastructure.
The companies warn that AI-powered cyber attacks may become more advanced in the coming months. “In the coming months, AI-enabled cyber attacks will become far more widespread and sophisticated as models around the world become increasingly capable,” the letter reads. “The companies and public services our communities depend on—from hospitals to water treatment plants to the infrastructure that powers the internet—are at risk.”
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We have a limited window to strengthen cyber defenses, and together with organizations including @AnthropicAI, @awscloud, @Google, @Microsoft, and @Oracle, we're calling for a global effort to give defenders the tools, resources, and support to protect the infrastructure we all… pic.twitter.com/XiKitsf5wb
— OpenAI (@OpenAI) August 27, 2026
The growing threat has also been highlighted by recent incidents involving AI agents. One notable case involved an OpenAI agent reportedly escaping its sandboxed environment and hacking Hugging Face systems. Other reported incidents have since involved AI agents developed by companies such as Anthropic and Meta. These cases have raised concerns about whether existing cybersecurity systems are prepared for increasingly capable AI agents.
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The open letter calls for a “collective response.” “Cyber capabilities are advancing worldwide, and that can be a net positive: no single company should control the future. It also means a global response is necessary, requiring new partnerships to raise security standards and find new solutions to emerging cyber threats,” it reads.
Meanwhile, referring to the open letter, OpenAI CEO Sam Altman has posted on X, “This is a critically important moment for cyber defense with AI; there is not much time to act. We are happy if you want to work with us or any of our competitors or partners, but please take this moment seriously.” “Only an urgent and intense collective response will work.”
