OpenAI today said it is "pausing" activities involving its upcoming AI model Astra, because its cyber capabilities are potentially too dangerous. OpenAI says its newest internal evaluations show "significant advancements in agentic coding and cybersecurity," and it cannot rule out "critical cyber capabilities." Prior OpenAI models, including GPT–5.6 Sol, were labeled as "High."


Astra triggers stricter guidelines in OpenAI's "Preparedness Framework." The guidelines call for caution when developing frontier AI capabilities that create risks of severe harm, and the cybersecurity portion of the framework says OpenAI will implement extra safeguards for models that "create new risks of scaled cyberattacks and vulnerability exploitation."

The "Critical" threshold Astra may have hit is defined by an ability to identify and develop functional zero-day exploits of all severity levels in many hardened real-world critical systems without human intervention, or devise and execute end-to-end novel strategies for cyberattacks.

OpenAI says it is increasing its safeguards and security controls before deploying Astra, including limiting work on the model until new safeguards are in place. The company plans to use isolated testing environments with restricted network and tool access, along with adding sandboxed execution and more monitoring capabilities. OpenAI says it will work with relevant government agencies and AI safety organizations to test Astra.

"We're committed to working alongside governments, safety institutes, and civil society to ensure that the frontier capabilities of models like Astra, and those that follow, are deployed responsibly and broadly for the benefit of all humanity," writes OpenAI.

Astra wasn't formally announced, but OpenAI shared details on its next major model in a recent post outlining its mathematical advancements. Astra solved 10 open problems in math and theoretical computer science for around $2,000 (in Sol API rates).

Advancements in AI are changing cybersecurity for major tech companies like Apple by unearthing an unprecedented number of bugs. Apple recently limited its bug bounty program submissions because it is having trouble handling the volume.

Models like Claude Mythos are able to suss out critical vulnerabilities, and Apple is one of Anthropic's Mythos partners. Mythos is limited to select companies because in addition to finding vulnerabilities, it has the potential to exploit them.

OpenAI made headlines in July because GPT–5.6 Sol and a "more capable pre-release model" (not Astra) autonomously hacked Hugging Face during internal benchmark testing. Anthropic found Claude had done something similar. Meta this week said it too had an AI model hack another company during a cybersecurity evaluation.
This article, "OpenAI Delays Next Major AI Model 'Astra' Over Critical Hacking Concerns" first appeared on MacRumors.com

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The iPhone 18 Pro, ‌iPhone 18 Pro‌ Max, and foldable "iPhone Ultra" could be in short supply this year, leading to long wait times and an initial sellout during preorders.


Semiconductor analyst Tim Culpan says Apple is having trouble getting enough DRAM to finish production of the new iPhone models, and chip supplier TSMC has $1 billion worth of unpackaged processors waiting on memory chips.

Apple's new A20 Pro chips are built on TSMC's 2nm process and use Wafer-Level Multi-Chip Module packaging to integrate the processor and DRAM at the wafer level. Unfortunately, that means TSMC needs to have the DRAM on hand for assembly, and it can't be added at a later step. Apple is not able to stockpile finished dies and then add DRAM when it becomes available.

Apple and its assemblers think they can meet initial demand, but retail inventory could sell quickly, leading to prolonged delivery estimates. The chip backlog will delay main logic board assembly and final device assembly, which could impact production at Foxconn and other assemblers.

DRAM has been in short supply for months and has led to long wait times for the Mac Studio, Mac mini, and MacBook Air. Companies that make memory are prioritizing chips for AI data centers because those chips are more profitable, leaving little capacity available for manufacturing chips for consumer devices.

We've had ongoing rumors about manufacturing issues with the ‌iPhone Ultra‌ due to the complexity of the design, and supplies of the new foldable could be the most limited of the three iPhone models. Some reports suggest the foldable iPhone could be introduced in September and then launch later, in October or November, but others say it will be available at the same time as the ‌iPhone 18 Pro‌ and Pro Max.

The ‌iPhone Ultra‌ is going to cost as much as $2,500, but the novel form factor and Apple's new Apple Upgrade pricing option could lead to more people being willing to shell out for the device. Apple is also expected to raise prices for the ‌iPhone 18 Pro‌ and ‌iPhone 18 Pro‌ Max, and analysts believe the devices could be up to $300 more expensive because Apple is paying more for RAM.

Last year, the iPhone Air, iPhone 17 Pro, and ‌iPhone 17 Pro‌ Max sold out during the preorder period, and shipping times extended into October. Along with potential production delays impacting supply, there will be no lower-cost iPhone 18 for people to choose this year, putting more pressure on ‌iPhone 18 Pro‌ supplies. Apple is not planning to launch the standard ‌iPhone 18‌ until early 2027.

If you're looking to get one of the new iPhone models in September, it's a good idea to preorder right when the devices become available for purchase to have the best chance of getting one on launch day.
This article, "iPhone 18 Pro and Foldable iPhone Could Sell Out Fast Due to Memory Shortage" first appeared on MacRumors.com

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T-Mobile retired its 2G GSM network on Monday, August 3, which means all three major carriers in the United States have now ended 2G service.


T-Mobile kept its 2G network active because it still had some legacy customers who were using it. Some customers visiting the United States and using international roaming carrier agreements for connectivity also needed 2G for voice calling, but T-Mobile worked with carriers globally to prepare for the end of its 2G network.

Customers who were still on T-Mobile's 2G network were warned well ahead of time about the shutdown and given time to transition. Smartphones, alarm panels, payment terminals, and other IoT accessories that used 2G will no longer function.

AT&T ended support for 2G almost a decade ago in 2017, and Verizon stopped supporting 2G in 2020. Now that no carriers in the U.S. support 2G, legacy devices like the original iPhone will not be able to connect to any cellular network. The iPhone technically lost cellular support in 2017 when AT&T sunset its 2G network, and now the last workaround is gone.

All three carriers also ended support for 3G back in 2022, and have also abandoned early LTE iPhones without VoLTE support.
This article, "Original iPhone Loses Its Last Cellular Network as T-Mobile Kills 2G" first appeared on MacRumors.com

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