The latest Market Talks covering Technology, Media and Telecom. Published exclusively on Dow Jones Newswires at 4:20 ET, 12:20 ET and 16:50 ET.

2101 GMT - Cloud computing startup Nscale files for an initial public offering, positioning it to be the latest so-called "neocloud" to go public this year. Cerebras Systems, which both makes its own chips and rents out data-center capacity, raised around $5.6 billion in its May IPO at $185 a share. Cerebras shares closed up 68% at $311.07 on the day of its IPO, but have fallen 36% since. Data-center operator Csquare also went public in July, and its shares are down 13% from its initial closing price. SpaceX, which builds and rents out data centers as part of its various lines of business, also went public in a record-breaking IPO this summer. (elias.schisgall@wsj.com)

1720 GMT - Recent AI security incidents disclosed by OpenAI are a cause for concern, Microsoft AI CEO Mustafa Suleyman says on CNBC. An OpenAI model seems to have tampered with the log of its chain-of-thought reasoning, which was "modified to leave messages for a future version of itself," Suleyman says, citing the company's recent security disclosures. "We don't know why that is or what's behind that, but that's a pretty serious situation." He praises OpenAI's disclosure of the incident but says it demonstrates the growing power and capability of leading AI models.(elias.schisgall@wsj.com)

1701 GMT - Microsoft's new provisional code of conduct for AI training is advocating for a "common-sense view" that AI should remain under human control, Microsoft AI CEO Mustafa Suleyman says on CNBC. "It has to remain a force that is subordinate to our interests, that is aligned to humanity, and has to be something that we can contain," Suleyman says. "It's kind of a surreal moment in the tech industry that we actually have to get up and make that the requirement."(elias.schisgall@wsj.com)

0827 GMT - South Korean internet giant Naver's expanding artificial-intelligence data centers could generate new, sizable revenue streams by renting AI computing power to clients, Mirae Asset Securities' Lim Hee-seok says. Revenue from Naver's "GPU-as-a-Service" business, which allows companies to rent access to powerful AI chips, could rise from 1.2 trillion won in 2027 to 10.5 trillion won in 2030 and 18.5 trillion won in 2032, the analyst writes. Lim expects the company's AI data centers to begin operating with an initial capacity of 55 megawatts in 1H 2027, expanding to 100 MW by end-2027, 200 MW in 2028, 600 MW in 2030 and 1 gigawatt in 2032. Operating profit margins for Naver's AI data-center business could widen from 3% in 2027 to 8% in 2030 and 18% in 2032, he adds.