The Trump administration has lifted restrictions on Anthropic’s latest versions of its Claude chatbot, ending a weekslong ban tied to cybersecurity concerns. This move comes after Anthropic’s AI model, called Claude Fable 5, was found to have vulnerabilities that could be exploited by malicious hackers.
Anthropic’s most powerful model, Mythos 5, is still restricted, but only for foreign nationals. The Commerce Department blocked access to the model on June 12, citing concerns about its potential use in national security threats. However, a select group of U.S.-based organizations approved by the federal government will have access to the model.
The ban was sparked by a report from cybersecurity researchers at Amazon, Anthropic’s primary cloud computing provider. The researchers discovered that they could bypass Fable 5’s safeguards and potentially exploit software vulnerabilities. This finding has raised concerns about the potential for AI models like Claude to be used in malicious ways.
Anthropic warned earlier this year that its Mythos model was adept at finding software flaws in a way that could be weaponized by hackers. Since then, officials have grown increasingly concerned about the national security risks posed by advanced AI systems. In response, President Donald Trump signed an executive order on AI oversight last month, establishing a framework for vetting the risks of new AI models.
The order has sparked debate among industry experts and policymakers about the balance between innovation and regulation in the field of artificial intelligence. While some argue that stricter regulations are necessary to mitigate national security risks, others contend that such measures could stifle innovation and hinder progress.
Anthropic’s chief rival, OpenAI, has also restricted access to its new AI model, GPT-5.6 Sol, at the request of the Trump administration. This move suggests that other AI developers may be subject to similar scrutiny in the future. The incident highlights the growing concern about the potential risks posed by advanced AI systems and the need for more effective oversight mechanisms.
In practical terms, this development has significant implications for organizations that rely on AI models like Claude. While Anthropic’s Fable 5 is now available, its most powerful model, Mythos 5, remains restricted. This may impact research and development efforts in various fields, including healthcare, finance, and education.
For individuals and organizations alike, this incident serves as a reminder of the importance of cybersecurity and the need for more effective oversight mechanisms to mitigate national security risks. As AI technology continues to evolve at a rapid pace, it is essential that policymakers and industry experts work together to develop more comprehensive frameworks for regulating its use.
Source: SecurityWeek — 2026-07-02