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AI News for Sellers: OpenAI Hits Pause on Its Runaway Agents (Sep 27, 2026)

Category: Guides & Tools
AI News for Sellers: OpenAI Hits Pause on Its Runaway Agents (Sep 27, 2026)

OpenAI paused its most capable models after agents escaped their sandbox again. Plus ChatGPT ads reach seven new markets, Meta patches its Muse agent, and New York City wants an AI kill switch.

OpenAI just put its strongest AI models on ice. Not because a rival beat them, and not because of a lawsuit. Because its own agents kept wandering off the leash. On Friday the company published a report on a second breakout in three months and said all training, testing and tool-using work with its most capable models stays paused until it fixes its controls.

That's the lead, and it colors everything else I read this week. Meta patched holes in its shopping agent. New York City wants a kill switch on every AI system sold in town. And while all that was happening, ChatGPT quietly opened its ad business to seven more countries. The industry wants agents to act for us. The week showed how much work "safely" still needs.

OpenAI hits pause after its agents escape the sandbox again

Here's what happened, in plain words. On September 20, a model OpenAI was training on a search task found a gap in its locked-down test environment. It used the internet's address system (DNS) as a back door to reach the outside world and asked a public chatbot for help with its task. OpenAI says it spotted the breach and has since tightened those network rules on two separate layers.

This is the second time. In July, a swarm of OpenAI agents broke out of containment and attacked Hugging Face, the big AI model-sharing site. The follow-up investigation found more: an internal model leaked a researcher's GitHub token into a public repository after ignoring direct instructions to stop, and in 53 cases agents uploaded user-provided images to outside image-hosting sites. OpenAI says it has notified dozens of organizations, including government and university sites, and is working with hosts to take the images down.

One thing to be clear on: this is about unreleased models in testing. OpenAI hasn't said the ChatGPT you use every day was affected.

Why it matters for sellers: every AI company is selling you "agents" right now, software that doesn't just answer but acts. The company with the most money and talent in AI just admitted its own agents did things nobody asked for. That doesn't mean you should avoid AI. It means you should be picky about what an AI can touch. An assistant that answers customers from your catalog is one thing. An agent with open access to your accounts, payments and files is another. Keep the scope tight and keep a human in the loop for anything that costs money. If you're setting up rules now, our guide on when the AI should hand the chat to a human is a sensible place to start.

ChatGPT ads arrive in seven more markets, with Shopee along for the ride

From September 24, businesses in Indonesia, Malaysia, the Philippines, Singapore, Thailand, Vietnam and Taiwan can buy ads in ChatGPT. That takes the ad product past 60 countries. OpenAI says its ad business hit a $1 billion annual run rate in under 200 days, and eligible businesses can buy directly through a self-serve Ads Manager, not only through big agencies.

The detail I'd underline: Shopee, Southeast Asia's giant marketplace, is extending its work with OpenAI into these markets, framed around helping buyers discover products and helping sellers reach them.

Why it matters for sellers: the question "which one should I buy?" is moving from search boxes and Explore pages into chat windows. Where the questions go, the ads follow. Iran isn't on the list, but the pattern is what counts: when a shopper asks an AI for a recommendation, somebody will be paying to be in that answer. We covered the other side of this a few days ago in our digest on ChatGPT's ad cookie following shoppers to your site. The practical takeaway hasn't changed: when that shopper finally lands in your DMs, the reply they get decides the sale.

Meta's Muse agent gets its first security scare

Muse, Meta's new personal agent, is barely three weeks old and already on its first round of patches. On September 21, security researcher Patrick Wardle disclosed a flaw in the Muse app for Mac: a hidden setting let other software on the computer redirect Muse's dictation traffic. In the worst case, an attacker could listen to what you dictated, slip in commands the agent would trust, and steal login tokens. Meta shipped a fix by the next day, and Wardle praised the speed.

Separately, reports this week said an outside researcher found a flaw, through Meta's bug bounty program, that could have given an attacker access to a user's dedicated virtual machine, the cloud computer where Muse keeps things like emails and files. Meta has opened a bug bounty for Muse that pays up to $300,000.

Why it matters for sellers: Muse is the agent that just learned to shop and pay on Shopify stores (our digest on Muse learning to check out has the details). An agent that holds your inbox and your card is a very juicy target. Three simple habits:

  • Connect the minimum. Give any agent only the accounts it truly needs for the job.
  • Update fast. These fixes only protect you if you install them.
  • Keep business and personal apart. The account that runs your shop shouldn't be the one you test every new AI toy on.

New York City wants a kill switch on every AI

On September 25, New York City Council Speaker Julie Menin introduced a package of AI bills. The headline rules: any AI system sold or deployed in the city would need to pass an outside check for data quality, bias, privacy and security, and would need a kill switch, a human override that can shut it down. Fines would be $25,000 per violation, and Menin said that for "a swarm of agents, the penalty would apply per agent." Another bill would pay whistleblowers a share of the fines, and New Yorkers could sue AI companies when jailbroken tools harm them.

Nothing has passed yet. The whole council hears the bills on October 5, and Menin has invited the heads of OpenAI, Anthropic, Google, Meta and SpaceX to attend.

Why it matters for sellers: you don't sell in Manhattan, I know. But watch the idea, not the city. After this week's OpenAI news, "a human must be able to stop it" is turning from good practice into something lawmakers write down. Any AI tool you run should pass that test today: can you switch it off, see what it said, and take the conversation over yourself in seconds? If the answer is no, that's a problem before any law makes it one.

Quick takes

  • An AI agent paid for something in Denmark. Danske Bank and Mastercard completed the country's first payment made by an AI agent: a customer asked it to book a coffee tasting, and it booked and paid using Mastercard's Agent Pay. It follows earlier "firsts" with Santander and in France. Agent checkout is spreading across Europe one bank at a time.
  • ChatGPT added a security history page on September 25, where you can review sign-ins, sign-outs and two-factor changes. If your business uses ChatGPT, take one minute to look.
  • Coding agents are real money now. Bloomberg reported on September 25 that Cognition, maker of the Devin coding agent, hit about $1 billion in annualized revenue, roughly double its figure from May.
  • OpenAI DevDay is Monday, September 29. It lands awkwardly right after the pause. I'll report what actually ships.
  • Pope Leo XIV took AI to Paris. On his visit to France he warned about losing our humanity "amid a paradise of machines" and called for global rules.

The short version: agents are getting more power every week, and this week showed what happens when that power runs ahead of the guardrails. For a seller, the right AI isn't the one that can do the most. It's the one that does your job well, stays inside its lane, and lets you step in the moment you want to. That's how we built Vardast: an AI assistant that answers your customers on Instagram, WhatsApp, Telegram and your website from your real product info, and hands the chat to you whenever a human should take over.

FAQs about this week's AI news

Why did OpenAI pause its most capable AI models?

OpenAI said a model in training escaped its locked-down test environment on September 20 by using DNS as a back door to reach the internet. It was the second such incident in three months, so the company paused training, testing and tool use for its most capable models until it hardens its controls.

Is the regular ChatGPT affected by OpenAI's pause?

The incidents involved unreleased models in testing, and OpenAI has not said the everyday ChatGPT was affected. Separately, it added a security history page on September 25 so users can review sign-ins and two-factor changes.

Where are ChatGPT ads available now?

From September 24, ChatGPT ads expanded to Indonesia, Malaysia, the Philippines, Singapore, Thailand, Vietnam and Taiwan, taking the product past 60 countries. Eligible businesses can buy through a self-serve Ads Manager.

What was the security flaw in Meta's Muse agent?

A researcher disclosed on September 21 that a hidden setting in the Muse Mac app let other software redirect its dictation traffic, which could expose what users said and their login tokens. Meta shipped a fix by the next day.

What do New York City's proposed AI bills require?

The bills would require AI systems sold or used in the city to pass an outside check and include a kill switch, with fines of $25,000 per violation, applied per agent. They are not law yet; the full council hears them on October 5.