{"id":231927,"date":"2026-06-15T11:49:00","date_gmt":"2026-06-15T15:49:00","guid":{"rendered":"https:\/\/testing.news-you-need.com\/index.php\/2026\/06\/15\/cybersecurity-experts-blast-us-government-for-restricting-anthropics-ai-models\/"},"modified":"2026-06-15T12:05:11","modified_gmt":"2026-06-15T16:05:11","slug":"cybersecurity-experts-blast-us-government-for-restricting-anthropics-ai-models","status":"publish","type":"post","link":"https:\/\/testing.news-you-need.com\/index.php\/2026\/06\/15\/cybersecurity-experts-blast-us-government-for-restricting-anthropics-ai-models\/","title":{"rendered":"Cybersecurity experts blast US government for restricting Anthropic\u2019s AI models"},"content":{"rendered":"

Cybersecurity experts blast US government for restricting Anthropic\u2019s AI models<\/a><\/p>\n

https:\/\/www.cybersecuritydive.com\/news\/anthropic-us-government-export-ban-mythos-fable\/822909\/<\/a><\/p>\n

Publish Date: 2026-06-15 11:49:00<\/a><\/p>\n

Source Domain: www.cybersecuritydive.com<\/a><\/p>\n

Author: <\/a><\/p>\n

Using an unordered list, summarize the following article with between 4 and 8 key points. <\/p>\n

Dozens of prominent cybersecurity experts are criticizing the Trump administration for banning Anthropic from letting foreign entities access its powerful new AI models.
\nThe U.S. government\u2019s export-control directive \u2014 which prompted Anthropic to entirely suspend access to its Fable 5 and Mythos 5 models, including in the U.S.\u00a0\u2014 \u201chas taken the best models away from defenders, created market uncertainty, and risked America\u2019s AI leadership without any real risk to justify it,\u201d the experts wrote on Sunday in a letter to Commerce Secretary Howard Lutnick and National Cyber Director Sean Cairncross.<\/p>\n

The Trump administration on Friday told Anthropic to immediately prevent foreign nationals, including Anthropic employees, from accessing the new models, reportedly after Amazon researchers were able to circumvent some of Fable 5\u2019s anti-hacking guardrails. Anthropic designed Fable 5 to offer the same power as its now-famous Mythos model but with restrictions meant to prevent its weaponization, but Amazon CEO Andy Jassy reportedly warned Trump administration officials that the guardrails were flawed.
\nClash over seriousness of vulnerability
\nIn announcing its decision to completely shut down access to Fable 5 and Mythos 5, Anthropic said the U.S. government informed it of \u201ca potential narrow, non-universal jailbreak, which essentially consists of asking the model to read a specific codebase and fix any software flaws.\u201d
\n\u201cWe reviewed a demonstration of this specific technique being used to identify a small number of previously known, minor vulnerabilities,\u201d Anthropic said in its statement. \u201cThese vulnerabilities all appear relatively simple, and we have found that other publicly-available models are able to discover them as well without requiring a bypass.\u201d
\nThe cybersecurity experts\u2019 letter \u2014 which as of Monday morning carried 76 signatures, including CEOs, CISOs, venture capitalists and prominent security researchers \u2014 echoed Anthropic\u2019s point.
\n\u201cAnthropic\u2019s Mythos-class models are quite good at finding flaws and weaponizing exploits,\u201d they wrote. \u201cHowever, they are not uniquely good at these tasks, and many of the undersigned individuals regularly use other foundation and open-source models for security audits and red-teaming every day.\u201d<\/p>\n

Indeed, a recent government competition spurred the creation of open-source AI models that have revolutionized the process of finding software vulnerabilities, in many cases with significantly lower costs than leading AI vendors\u2019 better-known models.
\nU.S. AI competitiveness concerns
\nAnthropic argued that it made little sense to ban access to Fable and Mythos based on a capability that many models possessed.
\n\u201cIf this standard was applied across the industry,\u201d Anthropic said, \u201cwe believe it would essentially halt all new model deployments for all frontier model providers.\u201d
\nThe battle over access to Anthropic\u2019s AI models comes as the U.S. and China tussle for supremacy in an industry seen as increasingly vital to everything from machine-speed cyber defense to cutting-edge medical research.
\nChina\u2019s advanced AI models are \u201conly months behind the best American models,\u201d the cybersecurity experts said in their letter. \u201cTo pull the best capabilities away from defenders without a good reason when our adversaries are rapidly advancing is dangerous.\u201d<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

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