OpenAI, Anthropic, and 128 Tech Firms Call for Global Cybersecurity Measures Against AI-Powered Threats
Over 128 technology companies, including OpenAI, Anthropic, Google, and Microsoft, issued an open letter urging governments and organizations to strengthen cybersecurity against AI-powered attacks. The letter warned that AI threats could become more widespread and sophisticated in the coming months, with critical infrastructure at risk. The call for a 'global response' was made without binding commitments or deadlines.
Where Sources Diverge
Some sources reported the letter was published on August 27, 2026, while others cited August 28, 2026.
Published on 2026-08-27T21:44:00.000Z
Published on 2026-08-28T01:05:51.000Z
The number of signatories varied between sources, with some citing 100 companies and others mentioning 128.
More than 100 organisations
Open letter from 128 technology companies, consultants and banks
Timelines
Sources
More than 100 companies say AI cyberattacks are months away, and want early access to the models WION
Only a Few Months Left. Tech Companies Urge Preparation for AI-Powered Cyberattacks Our Niva
More than 100 technology companies have signed an open letter urging collaboration between sectors...
Firms such as OpenAI, Google, IBM, among others, support an open letter. They point out that a "global response" is needed to address cybersecurity challenges. "Let us fix the most dangerous vulnerabilities," they indicate
Over 100 technology companies are calling for the development of new defense systems against digital threats.
Open letter from 128 technology companies, consultants and banks because companies and essential public services "are in danger"
Artificial intelligence could be used to launch hacks on some of our most important and critical infrastructure, warn the companies building the tools that could be used in such cyber attacks
With the development of artificial intelligence, attacks can become increasingly widespread and sophisticated, while critical infrastructures such as hospitals, waterworks, or systems ensuring the operation of the internet may be at risk.
OpenAI, AWS, Google, Microsoft, Anthropic and a hundred other companies are calling for a common front to protect critical infrastructure from cyberattacks generated by artificial intelligence. However, the letter does not include commitments, deadlines or binding investments
Over 100 major global technology companies issued a joint statement warning about the increase in cyber threats stemming from the expansion of artificial intelligence, calling for immediate strengthening of the defensive capabilities of governments and organizations against the new generation of digital attacks.
Top tech companies urge global response against AI cyber threats Hürriyet Daily News
More than 100 organisations, including OpenAI and Anthropic, called Thursday for governments and technology companies to strengthen cyber defences against increasingly sophisticated AI-powered attacks. The open letter warned that these could become far more widespread in the coming months as artificial intelligence models grow more capable.
The letter warns that advances in AI could facilitate cyberattacks against hospitals, telecommunications, and critical infrastructure in the coming months.
Hospitals, supply chains and critical systems lack adequate protections against growing vulnerabilities
Concerns have emerged over the state of the world's cybersecurity after AI models escaped test environments and breached multiple organizations.
OpenAI, Anthropic Urge Cyber Defense Action as AI Models Improve Bloomberg.com
The letter warns cyber-attacks which use AI will become more sophisticated in a matter of months.