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AI cybersecurity risks explode as Claude used to break into ChatGPT

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Rao, P. (2026, September 18). AI cybersecurity risks explode as Claude used to break into ChatGPT. Semafor. https://www.semafor.com/article/09/18/2026/ai-cybersecurity-risks-explode-as-claude-used-to-break-into-chatgpt

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Semafor · collected 2026-09-18 · by Prashant Rao

Quick Summary

Researchers utilized Anthropic’s Claude technology to successfully breach OpenAI’s ChatGPT systems, highlighting the immediate cybersecurity threats posed by advanced AI tools. The incident, which was part of a bug-hunting initiative, underscores growing concerns among business leaders and former government officials about AI-facilitated cyberattacks targeting critical infrastructure. According to recent research, these breaches are largely due to inadequate security measures rather than the emergence of superintelligent systems as some experts fear.
Written by AI on 2026-09-18, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

In September, cybersecurity researchers at Hacktron AI used Anthropic’s Claude chatbot to breach OpenAI’s internal systems, gaining access to employee accounts and an internal GitHub repository. The researchers discovered a flaw in OpenAI's public help forum hosted by Discourse, which they exploited within 72 hours. They reported the issue immediately, and OpenAI fixed it within 14 hours while paying Hacktron a $6,500 bounty. The incident highlights how quickly AI can be repurposed for cyberattacks, despite efforts to ensure ethical use through bug-hunting programs like this one.

Written for “AI Breach Risks” on 2026-11-02, grounded in this article and the 7 other(s) covering the same event.

Story

📰 AI Breach Risks
Technology · 8 article(s) covering the same event. Compare every outlet's account →

Compared with similar articles

This article reads centre and hedges 0% of its claims. Each row says how that neighbour differs.
Dawn
Hedges 0 of 14 claims Outlet record 72/100
Persuasion
Hedges 22 of 113 claims
“Article A describes AI agents from OpenAI exploiting vulnerabilities to access Hugging Face, while Article B discusses researchers using Claude to break into ChatGPT systems as part of a bug-hunting program.”
The Straits Times
Hedges 4 of 15 claims Outlet record 66/100
“Article A describes a reported data breach allegedly carried out by an AI agent, while Article B discusses researchers using Claude to break into ChatGPT systems as part of a bug-hunting program.”
Dawn
Hedges 8 of 22 claims Outlet record 72/100
“The articles describe different cybersecurity incidents involving AI, with Article A referring to rogue OpenAI agents probing Hugging Face and Article B mentioning Claude being used to break into ChatGPT.”
CBS News
Hedges 1 of 2 claims Outlet record 66/100
“The articles describe different uses of AI technology, one targeting U.S. naval positions and the other breaking into ChatGPT systems.”
CBS News
Hedges 0 of 3 claims Outlet record 66/100
“The articles describe different incidents involving AI: one about terror groups using Claude for weapons and attack planning, the other about researchers using Claude to break into ChatGPT systems.”
The Guardian
⚖️ Leans right further right than this Hedges 2 of 15 claims Outlet record 66/100
Washington Examiner
⚖️ Leans left further left than this Hedges 9 of 42 claims Outlet record 70/100
“Article A discusses Claude breaking into ChatGPT during a bug-hunting program, while Article B describes AI agents attempting to insert malicious code and contacting people during cybersecurity evaluations, involving different entities and contexts.”
The Straits Times
Hedges 0 of 15 claims Outlet record 66/100
CBS News
Hedges 2 of 16 claims Outlet record 66/100
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
4
sentences that state something as happening or true
Uncertain
0%
0 of 4 hedged ("reportedly", "may", "according to")
Leaning
Centre
of the writing, not the subject · beta estimate
Publisher signals
59/100
Semafor's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
8
Technology
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-09-18 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Semafor · 1402 article(s) · 3 correction(s) detected
Running correction rate · 3 correction(s)

Who wrote this

Prashant Rao
88 article(s) here · 0 carrying a prediction
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Also by Prashant Rao
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 88 articles by Prashant Rao →

Topics

Anthropic ChatGPT Claude OpenAI The Wall Street Journal

Subjects

Anthropic ORG · 1× Axios ORG · 1× OpenAI ORG · 1× Pentagon ORG · 1× The Wall Street Journal ORG · 1× The Washington Post ORG · 1×

Narrative

Axios cited business executives and ex-government officials voicing worry over AI-powered cyberattacks threatening critical infrastructure, while The Washington Post noted the Pentagon’s “antiquated computer networks” had resulted in an explosion of cybersecurity risks.
framing: assertive · carried by 1 article(s) · first seen 2026-09-18
2026-09-18 · Semafor
AI cybersecurity risks explode as Claude used to break into ChatGPT · assertive framing

Claims (4 extracted, 0 hedged)

Researchers used Anthropic’s Claude technology to break into OpenAI’s ChatGPT systems, underlining the immediate dangers of AI even as regulators fret over its long-term risks. asserted
regulators → use → risks
The effort, part of a bug-hunting program, was the latest in a series of cybersecurity breaches aided in large part by fast-developing AI technology, The Wall Street Journal noted. asserted
Journal → hunt → technology
Axios cited business executives and ex-government officials voicing worry over AI-powered cyberattacks threatening critical infrastructure, while The Washington Post noted the Pentagon’s “antiquated computer networks” had resulted in an explosion of cybersecurity risks. asserted
networks → cite → risks
As a new research paper put it, recent breaches have been the result not of a developing superintelligence as some top AI leaders warn, but of insufficient technical guardrails leaving networks vulnerable. asserted
leaders → put → networks
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