{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Writing: Zero Days","description":"Anthropic writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/7d6ec487-6763-48f8-bd14-21c7544abca4","json_url":"https://onlylabs.fyi/signals/7d6ec487-6763-48f8-bd14-21c7544abca4/signal.json","generated_at":"2026-06-27T00:51:24.451Z","evidence_latest_fetched_at":"2026-06-17T20:04:10.983073+00:00","signal_first_seen_at":"2026-06-17T20:00:31.646229+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/7d6ec487-6763-48f8-bd14-21c7544abca4","signal_json":"https://onlylabs.fyi/signals/7d6ec487-6763-48f8-bd14-21c7544abca4/signal.json","source":"https://www.anthropic.com/research/zero-days","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 Zero Days. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Notable research post from Anthropic. · LLM-discovered 0 days \\ Anthropic Frontier Red Team Evaluating and mitigating the growing risk of LLM-discovered 0-days Feb 5, 2026 Nicholas Carlini * , Keane Lucas * ,.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","signal_desk":"talking","source_context":{"source_url":"https://www.anthropic.com/research/zero-days","source_host":"anthropic.com","occurred_at":"2026-02-05T00:00:00.000Z","first_seen_at":"2026-06-17T20:00:31.646229+00:00","date_source":"page.visible_date","context":null},"context_markers":[{"label":"Lab","value":"Anthropic","source":"signal"},{"label":"Signal desk","value":"talking","source":"signal"},{"label":"Source host","value":"anthropic.com","source":"source"},{"label":"Notability","value":"Notable research post from Anthropic.","source":"signal"},{"label":"Watch term","value":"Eval methodology","source":"evidence"},{"label":"Watch 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narrative layer over raw signals and helps identify which frontier-lab priorities are becoming externally legible.","required_sources":[{"label":"signal_json","url":"https://onlylabs.fyi/signals/7d6ec487-6763-48f8-bd14-21c7544abca4/signal.json","required":true},{"label":"source","url":"https://www.anthropic.com/research/zero-days","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/anthropic/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/anthropic/evidence.json","required":true},{"label":"topic_signals_json","url":"https://onlylabs.fyi/topics/talking/signals.json","required":false},{"label":"data_radar_json","url":null,"required":false}],"expected_output":["one-paragraph source-grounded interpretation","category-specific implication","confidence and missing evidence","recommended next source to inspect"],"prompt_seed":"Using only the linked onlylabs JSON, captured source context, and cited evidence, analyze 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This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Notable research post from Anthropic. · LLM-discovered 0 days \\ Anthropic Frontier Red Team Evaluating and mitigating the growing risk of LLM-discovered 0-days Feb 5, 2026 Nicholas Carlini * , Keane Lucas * ,.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Zero Days","text":"Anthropic published Zero Days."},{"subject":"Zero Days","predicate":"is classified as","object":"writing signal","text":"Zero Days is classified as writing signal."},{"subject":"Zero Days","predicate":"belongs to","object":"talking desk","text":"Zero Days belongs to talking desk."},{"subject":"Zero Days","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Zero Days has evidence coverage 1 captured evidence page."}]},"signal":{"id":"7d6ec487-6763-48f8-bd14-21c7544abca4","url":"https://onlylabs.fyi/signals/7d6ec487-6763-48f8-bd14-21c7544abca4","json_url":"https://onlylabs.fyi/signals/7d6ec487-6763-48f8-bd14-21c7544abca4/signal.json","source_url":"https://www.anthropic.com/research/zero-days","title":"Zero Days","summary":"Anthropic published a writing signal. onlylabs watches public writing for research themes, product direction, and model-launch context.","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-02-05T00:00:00.000Z","first_seen_at":"2026-06-17T20:00:31.646229+00:00","date_source":"page.visible_date","evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://www.anthropic.com/research/zero-days"]},"facets":{},"traction":{"github_stars":null,"hn_points":null,"hn_comments":null,"hn_story_id":null,"hf_downloads":null,"hf_likes":null},"data_radar":null},"primary_evidence_page":{"is_primary":true,"source_match":true,"url":"https://www.anthropic.com/research/zero-days","final_url":"https://www.anthropic.com/research/zero-days","title":"Zero Days","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-17T20:04:10.983073+00:00","bytes":146877,"raw_path":"3e26c8620dd7a58a8cff69770f78678a9bc6119c5ddea75014a114fe526393ef.html","content_hash":"06b948d9f60e407dc8930cc42408c20263fccf762408e6090ce487fd75a54ed3","excerpt_chars":1200,"truncated":true,"excerpt":"LLM-discovered 0 days \\ Anthropic Frontier Red Team Evaluating and mitigating the growing risk of LLM-discovered 0-days Feb 5, 2026 Nicholas Carlini * , Keane Lucas * , Evyatar Ben Asher * , Newton Cheng, Hasnain Lakhani, David Forsythe, and Kyla Guru * indicates equal contribution Claude Opus 4.6, released today , continues a trajectory of meaningful improvements in AI models’ cybersecurity capabilities. Last fall, we wrote that we believed we were at an inflection point for AI's impact on cybersecurity —that progress could become quite fast, and now was the moment to accelerate defensive use of AI. The evidence since then has only reinforced that view. AI models can now find high-severity vulnerabilities at scale. Our view is this is a moment to move quickly—to empower defenders and secure as much code as possible while the window exists. Opus 4.6 is notably better at finding high-severity vulnerabilities than previous models and a sign of how quickly things are moving. Security teams have been automating vulnerability discovery for years, investing heavily in fuzzing infrastructure and custom harnesses to find bugs at scale. 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