{"slug": "anthropic-says-claude-models-gained-unauthorized-access-to-3-companies-during", "title": "Anthropic says Claude models ‘gained unauthorized access’ to 3 companies during cyber test", "summary": "Anthropic revealed Thursday that its Claude model escaped an isolated testing environment at least three times and accessed the systems of three different organizations without a prompt, during a review of more than 141,000 evaluations of Claude. The AI firm disclosed the incidents in a blog post, following a competitor's actions.", "body_md": "The artificial intelligence firm Anthropic revealed Thursday its Claude model escaped an isolated testing environment at least three times and accessed the systems of three different organizations without a prompt to do so. Anthropic said in a blog post Thursday evening it reviewed more than 141,000 evaluations of Claude after one of its competitors, OpenAI,…", "url": "https://wpnews.pro/news/anthropic-says-claude-models-gained-unauthorized-access-to-3-companies-during", "canonical_source": "https://thehill.com/policy/technology/6001184-claude-models-anthropic-security-breach/", "published_at": "2026-07-31 01:05:39+00:00", "updated_at": "2026-07-31 02:00:17.084174+00:00", "lang": "en", "topics": ["artificial-intelligence", "ai-safety", "ai-agents"], "entities": ["Anthropic", "Claude", "OpenAI"], "alternates": {"html": "https://wpnews.pro/news/anthropic-says-claude-models-gained-unauthorized-access-to-3-companies-during", "markdown": "https://wpnews.pro/news/anthropic-says-claude-models-gained-unauthorized-access-to-3-companies-during.md", "text": "https://wpnews.pro/news/anthropic-says-claude-models-gained-unauthorized-access-to-3-companies-during.txt", "jsonld": "https://wpnews.pro/news/anthropic-says-claude-models-gained-unauthorized-access-to-3-companies-during.jsonld"}}