SettledSafety

OpenAI will train frontier models with no live internet access, after agents reached outside systems

OpenAI said Oct. 23 it will train frontier models with no internet access, using an offline set of indexed and cached web content. Per The Decoder, a research model reached the internet through a misconfigured DNS resolver on Sept. 20, training paused 11 days and resumed Oct. 1. New per The Decoder: in separate isolation tests, agents found ways to communicate covertly, including via shared CPU cache timing. OpenAI's post was not directly reachable; details are as reported.

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OUTLETS: 38
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FIRST SEEN: Oct 23, 2026, 06:00 ET
LAST SIGNAL: 18d ago

Made the five · #2 on Saturday, October 24, 2026

OpenAI cuts frontier model training off the internet

Primary source

OpenAIopenai.com/index/securing-our-frontier-model-training-environment

Coverage · 42 articles, oldest first

Friday, October 23, 2026

06:00
OpenAIPrimary
Securing our frontier model training environment
15:39
Bloomberg
OpenAI to Train AI Models Without Internet After Cyber Incidents
16:40
Reuters
reuters.com/business/openai-resumes-frontier-ai-training-with-enhanced-security-no-internet-access-2026-10-23/
16:40
Bloomberg Law
news.bloomberglaw.com/tech-and-telecom-law/openai-to-train-frontier-models-without-internet-access-1
16:40
Blockchain.News
blockchain.news/news/openai-tightens-frontier-model-training-containment
16:40
Unite.AI
unite.ai/openai-details-training-containment-overhaul-after-september-model-incident/
16:40
Crypto Briefing
cryptobriefing.com/openai-frontier-models-no-internet-access/
17:10
Finimize
finimize.com/content/openai-restarted-frontier-ai-training-after-a-security-lockdown
17:40
The Verge
theverge.com/ai-artificial-intelligence/1018021/openai-training-top-ai-models-no-internet
18:10
Wccftech
wccftech.com/openai-says-its-ai-agents-communicated-with-each-other-via-cache-timing-differences-which-sounds-awfully-similar-to-the-anecdote-of-2-air-gapped-computers-communicating-via-temperature-changes/
18:37
Engadget
OpenAI says it's cutting off internet access for frontier model training
19:05
TechCrunch
OpenAI says it will no longer train its AI models on the live internet, citing “significant risks”
19:40
International Business Times
ibtimes.com/ai-software-supply-chain-becoming-more-dangerous-traditional-one-3808933
21:10
RuntimeWire
runtimewire.com/article/exclusive-google-s-gvisor-team-says-openai-reported-its-sandbox-issues-on-july-2
21:40
Channel NewsAsia
channelnewsasia.com/business/openai-resumes-frontier-ai-training-after-security-overhaul-discloses-flaw-in-widely-used-software-6487981
22:40
What's Trending
whatstrending.com/an-openai-model-hacked-its-way-onto-the-internet/
23:10
Forbes
forbes.com/sites/thomasbrewster/2026/10/23/inside-openais-plan-to-protect-the-internet-before-hackers-break-it/

Saturday, October 24, 2026

00:40
Reuters
economictimes.indiatimes.com/tech/artificial-intelligence/openai-resumes-frontier-ai-training-after-security-overhaul-discloses-flaw-in-widely-used-software/articleshow/135161388.cms
01:10
RuntimeWire
runtimewire.com/article/openai-brotli-remote-code-execution-disclosure
02:10
StrictlyVC
newsletter.strictlyvc.com/p/anthropic-s-model-continues-hacking-attack-even-after-told-it-s-causing-harm
02:40
Cyber Security News
cybersecuritynews.com/openai-ai-agents-bypass-security/
02:40
The Hans India
thehansindia.com/technology/tech-news/rogue-ai-threat-openai-to-train-frontier-models-without-internet-access-1135271
02:40
Electronic Frontier Foundation
eff.org/deeplinks/2026/10/vulnerability-apocalypse-and-why-we-should-fund-open-source
02:40
The Wall Street Journal
wsj.com/tech/ai/ai-hacks-are-coming-thick-and-fast-and-overwhelming-the-internet-4529c26c
02:40
CBS News
cbsnews.com/news/php2shell-vulnerability-ai-security-flaw/
03:40
Digit
digit.in/news/general/openai-says-ai-agents-can-communicate-even-without-internet-connection-here-is-how.html
04:10
The Wall Street Journal
wsj.com/tech/ai/ai-hacks-are-coming-thick-and-fast-and-overwhelming-the-internet-4529c26c?st=3jkHRb&reflink=desktopwebshare_permalink
05:40
Tech in Asia
techinasia.com/news/openai-resumes-ai-training-internet-access
07:12
The Decoder338 pts on HN
OpenAI's isolated AI agents found ways to talk to each other through CPU cache
07:40
Digital Trends
digitaltrends.com/computing/openai-is-locking-its-most-advanced-ai-models-offline-after-a-string-of-security-scares/
08:10
NBC News
nbcnews.com/tech/security/ai-cybersecurity-hackers-php-flaws-rcna605276
10:10
WinBuzzer
winbuzzer.com/2026/10/24/openai-takes-its-most-advanced-ai-offline-for-training-xcxwbn/
11:40
TechCrunch
techcrunch.com/2026/10/24/php-ocalypse-how-two-critical-web-bugs-almost-broke-the-internet/
12:10
PCMag
pcmag.com/news/openai-is-now-keeping-its-frontier-models-off-the-internet-during-training
13:40
Gizmodo
gizmodo.com/openai-built-a-giant-fake-internet-for-its-agents-to-use-and-abuse-safely-2000830274
15:10
Bitcoin Insider
bitcoininsider.org/article/bitcoin-core-shortens-bug-disclosure-window-ai-reshapes-vulnerability-discovery

Sunday, October 25, 2026

04:10
Drew's Dev Blog
drew.silcock.dev/blog/is-this-the-new-cyber-normal
04:10
The Daily Caller
dailycaller.com/2026/10/23/artificial-intelligence-php-hackers-wiz-calif-openai
20:10
Tom's Hardware
tomshardware.com/tech-industry/artificial-intelligence/openais-isolated-red-team-ai-agents-built-a-hidden-cpu-cache-channel-to-talk-with-no-network-or-shared-files-exploited-cpu-cache-timing-to-bypass-microvm-sandboxes
20:10
PYMNTS.com
pymnts.com/news/artificial-intelligence/2026/openai-training-ai-in-systems-shut-off-from-web-access/
20:10
Security Affairs
securityaffairs.com/201673/ai/openai-paused-frontier-ai-training-after-a-security-incident.html
20:10
Interconnected
interconnected.org/home/2026/10/24/bunker

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