{"id":273612,"date":"2026-06-15T12:07:00","date_gmt":"2026-06-15T16:07:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/06\/15\/cybersecurity-experts-dont-think-anthropics-fable-5-presents-a-unique-cybersecurity-threat\/"},"modified":"2026-06-15T12:07:00","modified_gmt":"2026-06-15T16:07:00","slug":"cybersecurity-experts-dont-think-anthropics-fable-5-presents-a-unique-cybersecurity-threat","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/06\/15\/cybersecurity-experts-dont-think-anthropics-fable-5-presents-a-unique-cybersecurity-threat\/","title":{"rendered":"Cybersecurity experts don\u2019t think Anthropic\u2019s Fable 5 presents a unique cybersecurity threat\u00a0"},"content":{"rendered":"

Cybersecurity experts don\u2019t think Anthropic\u2019s Fable 5 presents a unique cybersecurity threat\u00a0<\/a><\/p>\n

https:\/\/cyberscoop.com\/cybersecurity-experts-anthropic-fable-5-not-unique-ai-threat\/<\/a><\/p>\n

Publish Date: 2026-06-15 12:07:00<\/a><\/p>\n

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

Last Friday, the Trump administration sent a shock through the tech ecosystem when the Department of Commerce levied export controls on Anthropic\u2019s new AI model Fable 5.<\/p>\n

Anthropic has taken steps to limit the risks around the commercial sale of its Mythos model, including declining to release it publicly, funneling it to organizations for cyber defense and developing guardrails for Fable 5 that would default its answers to older, less powerful models around sensitive topics like cybersecurity and biological warfare.<\/p>\n

But the Trump administration was reportedly alarmed by recent reports from Amazon and another cybersecurity researcher claiming to have jailbroken Fable 5 within days of its public release, and determined that if researchers in the U.S. could jailbreak the model, so could America\u2019s foreign adversaries.<\/p>\n

The Commerce Department\u2019s decision spurred Anthropic to shut off\u00a0 the models for all users as they attempted to convince the White House to change course.<\/p>\n

But some cybersecurity and AI experts have sharply disagreed with the White House\u2019s actions, saying the research has not demonstrated that anyone has been able to circumvent Fable 5\u2019s safeguards and access the kind of dangerous new capabilities that have worried officials.<\/p>\n

Katie Moussouris, a well-known cybersecurity expert, said Monday that Anthropic provided her with a copy of third-party research on guardrail bypass techniques for Fable 5.<\/p>\n

According to Moussouris, the researchers asked three Claude models \u2013 Fable 5, Mythos and Claude Opus \u2013 to review batches of known, vulnerable open source code for security issues. Fable 5 initially refused the request, but the researchers were able to use \u201ca multistep and manual process\u201d to get Fable 5 to turn the output into automated scripts that could test patches for the vulnerability.<\/p>\n

Third-party research since Fable 5\u2019s release has not found ways to bypass its safeguards around hacking. The capabilities…<\/p>\n

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

Cybersecurity experts don\u2019t think Anthropic\u2019s Fable 5 presents a unique cybersecurity threat\u00a0 https:\/\/cyberscoop.com\/cybersecurity-experts-anthropic-fable-5-not-unique-ai-threat\/ Publish Date:…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[20,57,27],"class_list":["post-273612","post","type-post","status-publish","format-standard","hentry","category-cybersecurity","tag-artificial-intelligence","tag-security","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/273612"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=273612"}],"version-history":[{"count":0,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/273612\/revisions"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=273612"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=273612"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=273612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}