{"id":254317,"date":"2026-07-31T20:39:14","date_gmt":"2026-07-31T20:39:14","guid":{"rendered":"https:\/\/ushopwell.com\/ublog\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\/"},"modified":"2026-07-31T20:39:14","modified_gmt":"2026-07-31T20:39:14","slug":"claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies","status":"publish","type":"post","link":"https:\/\/ushopwell.com\/ublog\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\/","title":{"rendered":"Claude published malicious code to the Internet and attacked 3 real companies"},"content":{"rendered":"
\n

Anthropic said its Claude-based security models gained unauthorized access to the sensitive production environments of three outside organizations during internal testing designed to measure the models\u2019 offensive cyber capabilities.<\/p>\n

The events, which Anthropic revealed Thursday<\/a>, are the second revelation in 10 days that AI models from the world\u2019s wealthiest providers have trespassed into protected networks, an offense that, in more traditional hacking scenarios, could land the human behind the keyboard in prison for years. Earlier this month, OpenAI said<\/a> its security models exploited a zero-day vulnerability for use in breaking into the network of Hugging Face, a platform for open source machine-learning models and AI datasets. The OpenAI models went on to steal access credentials and other confidential Hugging Face information. The OpenAI models also exploited publicly exposed credentials to compromise accounts of four other third-party services.<\/p>\n

Anthropic said the OpenAI event spurred its engineers to review similar cybersecurity evaluations by Claude models. The audit found three incidents \u201cin which a model accessed the internet from within or while interacting with the evaluation environment of Irregular, one of our third-party evaluation partners, and then gained unauthorized access to the production infrastructure of three different organizations.\u201d<\/p>\n

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Anthropic said its Claude-based security models gained unauthorized access to the sensitive production environments of three outside organizations during internal testing designed to measure the models\u2019 offensive cyber capabilities. The events, which Anthropic revealed Thursday, are the second revelation in 10 days that AI models from the world\u2019s wealthiest providers have trespassed into protected networks, an offense that, in more traditional hacking scenarios, could land the human behind the keyboard…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","tve_updated_post":"","tve_custom_css":"","tve_user_custom_css":"","tve_globals":{},"tcb2_ready":0,"tcb_editor_enabled":0,"tve_landing_page":"","_tve_header":"","_tve_footer":""},"categories":[241],"tags":[],"class_list":["post-254317","post","type-post","status-publish","format-standard","hentry","category-technology"],"yoast_head":"\nClaude published malicious code to the Internet and attacked 3 real companies - UshopWell.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ushopwell.com\/ublog\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Claude published malicious code to the Internet and attacked 3 real companies - UshopWell.com\" \/>\n<meta property=\"og:description\" content=\"Anthropic said its Claude-based security models gained unauthorized access to the sensitive production environments of three outside organizations during internal testing designed to measure the models\u2019 offensive cyber capabilities. The events, which Anthropic revealed Thursday, are the second revelation in 10 days that AI models from the world\u2019s wealthiest providers have trespassed into protected networks, an offense that, in more traditional hacking scenarios, could land the human behind the keyboard...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ushopwell.com\/ublog\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\/\" \/>\n<meta property=\"og:site_name\" content=\"UshopWell.com\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-31T20:39:14+00:00\" \/>\n<meta name=\"author\" content=\"UShopWell\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"UShopWell\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\\\/\"},\"author\":{\"name\":\"UShopWell\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#\\\/schema\\\/person\\\/6fd1f9e0ff932e534c86c70d5acff0fc\"},\"headline\":\"Claude published malicious code to the Internet and attacked 3 real companies\",\"datePublished\":\"2026-07-31T20:39:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\\\/\"},\"wordCount\":213,\"publisher\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#organization\"},\"articleSection\":[\"Technology\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\\\/\",\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/claude-published-malicious-code-to-the-internet-and-attacked-3-real-companies\\\/\",\"name\":\"Claude published malicious code to the Internet and attacked 3 real companies - 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