The Hacker News
"AI security's greatest hits." Views expressed in this cybersecurity, cybercrime update are those of the reporters and correspondents. Accessed on 20 September 2026, 1443 UTC. Content and Source: "The Hacker News." URL--https://thehackernews.com/ Please check URL or scroll down to read your selections. Thanks for joining us today. Russ Roberts (https://www.hawaiicybersecurityjournal.net). Claude Opus 5 Helped Researchers Take Over OpenAI Staff Accounts via Chained Flaws Sep 19, 2026 Vulnerability / Artificial Intelligence Three researchers at the security firm Hacktron used Anthropic's Claude Opus 5 to chain two flaws and take over the ChatGPT and Codex accounts of several OpenAI employees, then reach an internal OpenAI code repository. The chain began with a bug in the software that runs OpenAI's public help forum and moved through a weakness in OpenAI's own login system. This was security research, not a real-world attack: the team reported ...