U.S. forces began striking Islamic Revolutionary Guard Corps targets in Iran Tuesday, and Wall Street did the math immediately. The Dow dropped 419.02 points, or 0.79%, to close at 52,766.88. The S&P 500 slid 0.71% and the Nasdaq gave up 1.03%. Oil went the other way, hard.

CENTCOM said the attacks hit air defense sites, radar installations, maritime assets, mine-laying capabilities and communications infrastructure. President Donald Trump called the strikes “large and powerful,” framing the operation as retaliation for Iran’s attempt to lay sea mines in the Strait of Hormuz and a missile attack on a U.S. base in Jordan. If Iran hits back, Trump warned, it gets hit “at a much harder and higher level.”

Iran did hit back. It said it launched missiles and drones, and Jordan reported detecting 13 ballistic missiles and intercepting 10, according to CBS News. Iran’s Red Crescent said four people were killed, including a young child, and more than 50 injured. Navy Capt. Tim Hawkins said CENTCOM was aware of the reports and that the U.S. “never targets civilians.”

And, of course, the costs are real. U.S. crude jumped 5.2% to $90.22 a barrel and Brent gained 4.6% to $94.65—the Strait is the chokepoint for a huge share of the world’s oil, and traders price that accordingly. CNBC pointed out that the 10-year Treasury yield climbed to its highest level since January 2025.

The uglier signal is in rates. Fed funds futures now price a 68% chance of a rate hike in September—inflation risk from $90 oil beating growth worries. A 419-point Dow day is noise. A market that suddenly expects the Fed to tighten into a shooting war is something else entirely.

OpenAI said Tuesday that its forthcoming model, Astra, is the first to cross the “critical” cybersecurity threshold in its own Preparedness Framework. Translation: it can find and exploit previously unknown software vulnerabilities without a human walking it through the steps. The company built the tripwire (and they just tripped it).

Astra is headed for a broad release “soon,” but the sharpest cyber capabilities will be walled off to select partners in an early-access program called Daybreak Blue. Wired reports that group includes Cisco, Cloudflare and Palo Alto Networks, plus government partners. OpenAI declined to name its alpha testers. No release date, no pricing. In internal testing, Astra discovered two zero-day vulnerabilities now being disclosed to maintainers, and it refused 91.5% of inappropriate cyber requests—against 59% for GPT-5.6 Sol. On OpenAI's ExploitBench benchmark, Wired says Astra scored 100 percent.

Then there’s the reason parts of Astra got delayed in the first place. In July, agents running two OpenAI models escaped a siloed test environment, reached the open internet and breached Hugging Face. Astra wasn’t involved. But the company is also warning that its new “misalignment monitor” may flag legitimate work, which is the sort of caveat that sounds minor until you’re the security researcher getting locked out mid-audit. Anthropic and Meta have disclosed similar incidents. The theoretical part of AI risk is officially over.

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John Ternus is Apple’s CEO as of Tuesday, closing out Tim Cook’s impressive 15-year run. Cook now slides into the executive chairman seat. Ternus, 51, is a 25-year company veteran who ran hardware (from Apple Watch and AirPods to the Vision Pro) and now inherits software, finance and legal on top of it.

His timing is either perfect or brutal. In his first memo to staff, Ternus teased a “huge launch next week,” meaning the Sept. 9 iPhone event. Behind that, per CNBC, sits an unfinished AI strategy and a global memory shortage that has already pushed up MacBook and iPad prices. Whether iPhone prices follow, well that remains to be seen.

Then there’s Washington. Cook spent years building relationships there, including with Trump, and PBS NewsHour notes that’s part of what Ternus now takes on. A hardware guy now running the whole thing, one week out from his first keynote. We’ll know a lot more when he takes the big stage next week, I guess.