{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Writing: Building Ai Cyber Defenders","description":"Anthropic writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/6653a6f5-cab9-4b05-85aa-5d1a0819c132","json_url":"https://onlylabs.fyi/signals/6653a6f5-cab9-4b05-85aa-5d1a0819c132/signal.json","generated_at":"2026-06-11T04:15:57.541764+00:00","org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/anthropic","dossier_json_url":"https://onlylabs.fyi/labs/anthropic/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/6653a6f5-cab9-4b05-85aa-5d1a0819c132","signal_json":"https://onlylabs.fyi/signals/6653a6f5-cab9-4b05-85aa-5d1a0819c132/signal.json","source":"https://www.anthropic.com/research/building-ai-cyber-defenders","lab_dossier":"https://onlylabs.fyi/labs/anthropic","lab_dossier_json":"https://onlylabs.fyi/labs/anthropic/dossier.json","analysis":"https://onlylabs.fyi/analysis/anthropic","analysis_json":"https://onlylabs.fyi/analysis/anthropic/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/anthropic/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":"https://onlylabs.fyi/topics/talking","topic_signals_json":"https://onlylabs.fyi/topics/talking/signals.json","topic_feed":"https://onlylabs.fyi/topics/talking/feed.xml","data_business":null},"answer_pack":{"answer":"Anthropic published Building Ai Cyber Defenders. 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As research and experience demonstrated the utility of frontier AI as a tool for cyber attackers, we invested in improving Claude’s ability to help defenders detect, analyze, and remediate vulnerabilities in code and deployed systems. This work allowed Claude Sonnet 4.5 to match or eclipse Opus 4.1, our frontier model released only two months prior, in discovering code vulnerabilities and other cyber skills. Adopting and experimenting with AI will be key for defenders to keep pace. [@portabletext/react] Unknown block type \"horizontalRule\", specify a component for it in the `components.types` prop We believe we are now at an inflection point for AI’s impact on cybersecurity. For several years, our team has carefully tracked the cybersecurity-relevant capabilities of AI models. Initially, we found models to be not particularly powerful for advanced and meaningful capabilities. However, over the past year or so, we’ve noticed a shift. For example: We showed that models could reproduce one of the costliest..."},"evidence_pages":[{"url":"https://www.anthropic.com/research/building-ai-cyber-defenders","final_url":"https://www.anthropic.com/research/building-ai-cyber-defenders","title":"Building Ai Cyber Defenders","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T04:15:57.541764+00:00","bytes":155168,"raw_path":"482b7139a29a7e0dc4189bdabc9e4d29eb0d06bc935151af1f2c4d5247deeacd.html","content_hash":"a64b5e34175a2b69a3224d2e1d612b0ae2a96e6c3f7b902c55d2cf531ae96b6d","excerpt_chars":1200,"truncated":true,"excerpt":"Building AI for cyber defenders \\ Anthropic Policy Building AI for cyber defenders Oct 3, 2025 AI models are now useful for cybersecurity tasks in practice, not just theory. As research and experience demonstrated the utility of frontier AI as a tool for cyber attackers, we invested in improving Claude’s ability to help defenders detect, analyze, and remediate vulnerabilities in code and deployed systems. This work allowed Claude Sonnet 4.5 to match or eclipse Opus 4.1, our frontier model released only two months prior, in discovering code vulnerabilities and other cyber skills. Adopting and experimenting with AI will be key for defenders to keep pace. [@portabletext/react] Unknown block type \"horizontalRule\", specify a component for it in the `components.types` prop We believe we are now at an inflection point for AI’s impact on cybersecurity. For several years, our team has carefully tracked the cybersecurity-relevant capabilities of AI models. Initially, we found models to be not particularly powerful for advanced and meaningful capabilities. However, over the past year or so, we’ve noticed a shift. 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