{"id":261721,"date":"2026-06-02T04:37:00","date_gmt":"2026-06-02T08:37:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/06\/02\/openai-expands-gpt-5-5-cyber-rollout-to-major-uk-banks\/"},"modified":"2026-06-02T04:55:11","modified_gmt":"2026-06-02T08:55:11","slug":"openai-expands-gpt-5-5-cyber-rollout-to-major-uk-banks","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/06\/02\/openai-expands-gpt-5-5-cyber-rollout-to-major-uk-banks\/","title":{"rendered":"OpenAI expands GPT-5.5 Cyber rollout to major UK banks"},"content":{"rendered":"

OpenAI expands GPT-5.5 Cyber rollout to major UK banks<\/a><\/p>\n

https:\/\/fintech.global\/2026\/06\/02\/openai-expands-gpt-5-5-cyber-rollout-to-major-uk-banks\/<\/a><\/p>\n

Publish Date: 2026-06-02 04:37:00<\/a><\/p>\n

Source Domain: fintech.global<\/a><\/p>\n

\"OpenAI<\/p>\n

OpenAI has granted nine major UK banks access to GPT-5.5 Cyber, its cybersecurity-focused AI model, as debate continues over how advanced AI security tools should be deployed across critical financial infrastructure.<\/strong><\/p>\n

The rollout gives institutions, including Lloyds Banking Group, HSBC and Nationwide access to technology designed to identify software vulnerabilities and security weaknesses. NatWest and Santander already had access through existing agreements, according to the BBC.\u00a0<\/p>\n

The move comes as rival AI company Anthropic continues to limit access to its Claude Mythos cybersecurity model, which remains unavailable to most UK banks despite growing interest from the sector.<\/p>\n

The UK\u2019s AI Security Institute recently found GPT-5.5 Cyber and Claude Mythos delivered similar levels of performance across cybersecurity testing tasks, adding to industry interest in how the models could support security teams responsible for protecting complex banking systems.<\/p>\n

Former UK Chancellor George Osborne, now a senior executive at OpenAI, said the company wanted to make the technology available to organisations responsible for defending critical infrastructure while maintaining safeguards around access.<\/p>\n

\u201cThe key things with these tools is that they need to be in the hands of the right people,\u201d Osborne said.<\/p>\n

\u201cWe want to make sure that the forces that are establishing order in our democracies have these tools, and the forces that want to disrupt us or commit crime, do not.\u201d<\/p>\n

The access debate has intensified since Anthropic revealed that Claude Mythos had identified a vulnerability within a legacy system that had reportedly gone undetected for nearly three decades.<\/p>\n

While OpenAI has expanded GPT-5.5 Cyber access to financial institutions in markets including the UK, Canada and Japan, Anthropic has taken a more restrictive approach, arguing that Mythos requires additional safeguards due to its capabilities.<\/p>\n

Anthropic said it is working to expand access to the model but believes a…<\/p>\n

Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

OpenAI expands GPT-5.5 Cyber rollout to major UK banks https:\/\/fintech.global\/2026\/06\/02\/openai-expands-gpt-5-5-cyber-rollout-to-major-uk-banks\/ Publish Date: 2026-06-02 04:37:00 Source…<\/p>\n","protected":false},"author":1,"featured_media":261722,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/fintech.global\/wp-content\/uploads\/2026\/06\/pexels-andrew-15863044-scaled.jpg","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[20,57,27],"class_list":["post-261721","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-artificial-intelligence","tag-security","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/261721"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=261721"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/261721\/revisions"}],"predecessor-version":[{"id":261723,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/261721\/revisions\/261723"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/261722"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=261721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=261721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=261721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}