Security chiefs at several major U.S. tech firms, including NVIDIA and Adobe,
have written to the Trump administration asking it to lift restrictions on
ANTHROPIC’s most powerful models, saying the bans impede efforts to prevent the
spread of cyberattacks, Refinitiv reports. Last Friday Washington ordered
ANTHROPIC to suspend access to Fable 5 and MYTHOS 5 for all foreign nationals on
national-security grounds. In a joint letter signed by more than 50 security
leaders, they warned the measures would weaken the industry’s ability to find
and patch software vulnerabilities while other AI tools make it easier for
hackers to exploit them. The letter said the action “deprives defenders of
state‑of‑the‑art models, creates market uncertainty, and, absent real-risk
evidence, jeopardizes U.S. leadership in AI.”
