The 6 biggest stories in tech, business, and macro — week of April 12, 2026.

Anthropic's Mythos Preview autonomously found high-severity zero-day vulnerabilities across every major operating system and browser. The offensive/defensive asymmetry in cybersecurity just shifted. Attackers with frontier AI can now run continuous, low-cost vulnerability scans that no human security team can match. Cyber insurance premiums, enterprise security budgets, and the entire defensive tooling stack are mispriced for this.

The Strait of Hormuz has been closed for five weeks with 20% of global oil supply blocked, and equity markets are near highs. Trump issued an ultimatum to Iran with a Tuesday 8 PM deadline. Amazon is already rolling out a 3.5% fuel surcharge and airlines are hiking bag fees. The market is betting on a deal. History says those bets don't always pay.

The Supreme Court invalidated Trump's IEEPA tariff authority, and a May US-China leaders' summit in Beijing is now the only real mechanism for trade stabilization. China enters that room with more leverage than it had in 2025. For multinationals, the summit outcome is a genuine binary.

AWS AI services crossed a $15 billion annualized run rate, the first time Amazon has broken that figure out publicly. Amazon has committed $200B in 2026 capex directed at AI infrastructure, and Jassy says demand is outpacing supply. The custom chip business sits at a $20B run rate. This is AI moving from narrative to line item.

Coachella 2026 Weekend 1 is being called one of the most stacked in recent memory. Sabrina Carpenter closed Friday after seven months of production. The Strokes played their first Coachella set in 15 years. Justin Bieber headlined his first major festival in years. Bini made history as the first Filipino group on that stage.

Jeff Bezos's stealth AI lab Project Prometheus just hired the co-founder of xAI and former OpenAI infrastructure lead to build its compute architecture. Backed by $6.2B and recruiting from OpenAI, DeepMind, and Meta, Prometheus is targeting engineering, manufacturing, and aerospace, not chat. Physical-world AI with proprietary operational data is a structurally different bet than anything currently valued at frontier multiples.