{"id":5456,"date":"2026-05-12T01:07:00","date_gmt":"2026-05-12T01:07:00","guid":{"rendered":"https:\/\/rjbarrett.redirectme.net\/?p=5456"},"modified":"2026-05-12T01:07:00","modified_gmt":"2026-05-12T01:07:00","slug":"daybreak-%e3%81%af%e3%82%af%e3%83%ad%e3%83%bc%e3%83%89%e7%a5%9e%e8%a9%b1%e3%81%ab%e5%af%be%e3%81%99%e3%82%8b-openai-%e3%81%ae%e7%ad%94%e3%81%88%e3%81%a7%e3%81%99-anthropics-engadget","status":"publish","type":"post","link":"https:\/\/rjbarrett.redirectme.net\/?p=5456","title":{"rendered":"Daybreak \u306f\u30af\u30ed\u30fc\u30c9\u795e\u8a71\u306b\u5bfe\u3059\u308b OpenAI \u306e\u7b54\u3048\u3067\u3059 &#8211; Anthropic&#8217;s Engadget"},"content":{"rendered":"<p><br \/>\n<\/p>\n<div id=\"content\">\n<article class=\"news-post\">&#13;<br \/>\n    &#13;<br \/>\n    &#13;<br \/>\n    &#13;<\/p>\n<p>&#13;<br \/>\n    &#13;<\/p>\n<div class=\"news-article\">\n<div class=\"slide-key image-holder gallery-image-holder credit-image-wrap lead-image-holder\" data-post-url=\"https:\/\/www.engadget.com\/2170410\/daybreak-openai-cybersecurity-initiative\/\" data-post-title=\"Daybreak is OpenAI's response to Anthropic's Claude Mythos\" data-slide-num=\"0\" data-post-id=\"2170410\">\n<picture id=\"p8d8b4e120296834982bc88b8754b943b\">&#13;<source media=\"(min-width: 429px)\" srcset=\"https:\/\/www.engadget.com\/img\/gallery\/daybreak-is-openais-response-to-anthropics-claude-mythos\/intro-1778547896.webp\" type=\"image\/webp\">&#13;<source media=\"(max-width: 428px)\" srcset=\"https:\/\/www.engadget.com\/img\/gallery\/daybreak-is-openais-response-to-anthropics-claude-mythos\/intro-1778547896.sm.webp\" type=\"image\/webp\">&#13;<br \/>\n                        <img loading=\"lazy\" decoding=\"async\" class=\"gallery-image \" src=\"https:\/\/www.engadget.com\/img\/gallery\/daybreak-is-openais-response-to-anthropics-claude-mythos\/intro-1778547896.jpg\" data-slide-url=\"https:\/\/www.engadget.com\/2170410\/daybreak-openai-cybersecurity-initiative\/\" data-post-id=\"2170410\" data-slide-num=\"0\" data-slide-title=\"Daybreak is OpenAI's response to Anthropic's Claude Mythos: \" width=\"780\" height=\"438\" alt=\"\u524d\u666f\u306b\u7537\u6027\u3001\u80cc\u666f\u306b OpenAI \u30ed\u30b4\u3002\"\/>&#13;<br \/>\n                    <\/source><\/source><\/picture>\n                    <span class=\"gallery-image-credit\">\u30d5\u30a9\u30c8\u30d5\u30a3\u30fc\u30eb\u30c9\/\u30b7\u30e3\u30c3\u30bf\u30fc\u30b9\u30c8\u30c3\u30af<\/span>\n                    <\/div>\n<div class=\"columns-holder \">\n<p>OpenAI \u306f\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30a4\u30cb\u30b7\u30a2\u30c1\u30d6\u3067\u3042\u308b Daybreak \u3092\u7acb\u3061\u4e0a\u3052\u305f\u3070\u304b\u308a\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u660e\u3089\u304b\u306b Anthropic \u306e Glasswing \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3059\u308b\u540c\u793e\u306e\u7af6\u5408\u76f8\u624b\u3067\u3059\u3002\u601d\u3044\u51fa\u3057\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u3001Glasswing \u306f\u3001\u9867\u5ba2\u306e\u30b5\u30a4\u30d0\u30fc\u9632\u5fa1\u30cb\u30fc\u30ba\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u3001Anthropic \u306e\u672a\u30ea\u30ea\u30fc\u30b9 AI \u30e2\u30c7\u30eb\u3067\u3042\u308b Claude Mythos Preview \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u307e\u3067\u306e\u3068\u3053\u308d\u671f\u5f85\u306f\u9ad8\u307e\u3063\u3066\u3044\u308b\u3002Mozilla \u306f 4 \u6708\u3001Mythos \u304c Firefox \u30d6\u30e9\u30a6\u30b6\u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306e 271 \u4ef6\u306e\u8106\u5f31\u6027\u306e\u767a\u898b\u3068\u30d1\u30c3\u30c1\u9069\u7528\u306b\u8ca2\u732e\u3057\u305f\u3053\u3068\u3092\u660e\u3089\u304b\u306b\u3057\u305f\u3002 OpenAI\u306b\u3088\u308b\u3068\u3001Daybreak\u306f\u5c02\u7528\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8Codex\u3092\u542b\u3080\u3055\u307e\u3056\u307e\u306aAI\u30e2\u30c7\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u3002 <\/p>\n<p>\u540c\u793e\u306f\u767a\u8868\u306e\u4e2d\u3067\u3001Daybreak\u306f\u30b5\u30a4\u30d0\u30fc\u9632\u5fa1\u304c\u8106\u5f31\u6027\u306e\u767a\u898b\u3068\u4fee\u6b63\u3060\u3051\u3092\u4e2d\u5fc3\u306b\u5c55\u958b\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u6700\u521d\u304b\u3089\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306b\u7d44\u307f\u8fbc\u307e\u308c\u308b\u3079\u304d\u3067\u3042\u308b\u3068\u3044\u3046\u524d\u63d0\u306b\u57fa\u3065\u3044\u3066\u69cb\u7bc9\u3055\u308c\u3066\u3044\u308b\u3068\u8aac\u660e\u3057\u305f\u3002 Daybreak \u306f\u3001\u5f71\u97ff\u306e\u5927\u304d\u3044\u554f\u984c\u3092\u512a\u5148\u3057\u3001\u5206\u6790\u6642\u9593\u3092\u6570\u5206\u306b\u77ed\u7e2e\u3057\u3001\u30ea\u30dd\u30b8\u30c8\u30ea\u5185\u3067\u30d1\u30c3\u30c1\u3092\u751f\u6210\u3057\u3066\u30c6\u30b9\u30c8\u3057\u3001\u76e3\u67fb\u53ef\u80fd\u306a\u30c6\u30b9\u30c8\u7d50\u679c\u3092\u9867\u5ba2\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u3044\u307e\u3059\u3002 OpenAI \u306e\u4f8b\u3067\u306f\u3001Codex Security \u306b\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u3001\u6700\u3082\u30ea\u30b9\u30af\u306e\u9ad8\u3044\u7d50\u679c\u3092\u691c\u8a3c\u3057\u3001\u305d\u308c\u3089\u3092\u4fee\u5fa9\u3059\u308b\u3088\u3046\u4f9d\u983c\u3057\u307e\u3057\u305f\u3002 <\/p>\n<blockquote class=\"twitter-tweet\" data-dnt=\"true\" align=\"center\" data-conversation=\"none\">\n<p lang=\"en\" dir=\"ltr\">Daybreak \u3092\u4f7f\u7528\u3057\u3066\u8106\u5f31\u6027\u3092\u3088\u308a\u65e9\u304f\u767a\u898b\u3057\u3066\u4fee\u6b63\u3057\u307e\u3059 <a href=\"https:\/\/t.co\/yobOSWYeWP\" target=\"_blank\">pic.twitter.com\/yobOSWYeWP<\/a><\/p>\n<p>\u2014 OpenAI (@OpenAI) <a href=\"https:\/\/twitter.com\/OpenAI\/status\/2053939703473430658?ref_src=twsrc%5Etfw\" target=\"_blank\">2026 \u5e74 5 \u6708 11 \u65e5<\/a><\/p>\n<\/blockquote>\n<p>Daybreak \u306f\u3001\u4e00\u822c\u7684\u306a\u76ee\u7684\u306b\u306f GPT-5.5 \u3092\u4f7f\u7528\u3057\u3001\u300c\u5b89\u5168\u306a\u30b3\u30fc\u30c9 \u30ec\u30d3\u30e5\u30fc\u3001\u8106\u5f31\u6027\u5206\u985e\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u5206\u6790\u3001\u691c\u51fa\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u3001\u30d1\u30c3\u30c1\u691c\u8a3c\u300d\u3092\u542b\u3080\u307b\u3068\u3093\u3069\u306e\u9632\u5fa1\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u306f GPT-5.5 \u3068 Trusted Access for Cyber\u200b\u200b \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u300c\u8a8d\u53ef\u3055\u308c\u305f\u30ec\u30c3\u30c9\u30c1\u30fc\u30e0\u3001\u30da\u30cd\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u30c6\u30b9\u30c8\u3001\u5236\u5fa1\u3055\u308c\u305f\u691c\u8a3c\u3092\u542b\u3080\u7279\u6b8a\u306a\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3078\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u30a2\u30af\u30bb\u30b9\u300d\u306b\u3064\u3044\u3066\u3082GPT-5.5-Cyber\u200b\u200b\u306b\u4f9d\u5b58\u3059\u308b\u4e88\u5b9a\u3060\u3002 OpenAI\u306f\u3059\u3067\u306b\u3001Cloudflare\u3001Cisco\u3001CloudStrike\u3001Palo Alto Networks\u3001Oracle\u3001Akamai\u306a\u3069\u3001\u3053\u306e\u30a4\u30cb\u30b7\u30a2\u30c1\u30d6\u306e\u4e0b\u3067\u8907\u6570\u306e\u30d1\u30fc\u30c8\u30ca\u30fc\u3068\u5354\u529b\u3057\u3066\u3044\u308b\u3002 <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>&#13;<br \/>\n    &#13;<br \/>\n<\/article>\n<\/p><\/div>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><br \/>\n<br \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#13; &#13; &#13; &#13; &#13; &#13; &#13;&#13;&#13; &#13; \u30d5\u30a9\u30c8\u30d5\u30a3\u30fc\u30eb\u30c9\/\u30b7\u30e3\u30c3\u30bf\u30fc\u30b9\u30c8\u30c3\u30af OpenAI \u306f\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30a4\u30cb\u30b7\u30a2\u30c1\u30d6\u3067\u3042\u308b Daybreak \u3092\u7acb\u3061\u4e0a\u3052\u305f\u3070\u304b\u308a\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u660e\u3089\u304b\u306b Anthropic \u306e Glasswing \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3059\u308b\u540c\u793e\u306e\u7af6\u5408\u76f8\u624b\u3067\u3059\u3002\u601d\u3044\u51fa\u3057\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u3001Glasswing \u306f\u3001\u9867\u5ba2\u306e\u30b5\u30a4\u30d0\u30fc\u9632\u5fa1\u30cb\u30fc\u30ba\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u3001Anthropic \u306e\u672a\u30ea\u30ea\u30fc\u30b9 AI \u30e2\u30c7\u30eb\u3067\u3042\u308b Claude Mythos Preview [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5457,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.engadget.com\/img\/gallery\/daybreak-is-openais-response-to-anthropics-claude-mythos\/intro-1778547896.jpg","fifu_image_alt":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-5456","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rj"],"_links":{"self":[{"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=\/wp\/v2\/posts\/5456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5456"}],"version-history":[{"count":0,"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=\/wp\/v2\/posts\/5456\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=\/wp\/v2\/media\/5457"}],"wp:attachment":[{"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rjbarrett.redirectme.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}