The US-Iran deal is signed, and Tehran moved to claim the chokepoint before the first news cycle closed. Iran announced mandatory maritime fees for all vessels transiting the Strait of Hormuz, the 21-mile passage carrying roughly a third of the world's seaborne oil, a claim with no standing in international maritime law governing strait passage. Iran's foreign ministry and the Revolutionary Guards (IRGC) are contradicting each other on whether the strait is actually open, and that gap is the operational question for Hong Kong and Singapore energy and shipping desks, not the deal text. Japan's defense minister told the BBC that accelerating Japan's defense posture is "critical" to prevent conflict, reading US commitment as no longer self-sufficient. Israel called the agreement a "catastrophic capitulation" and US intelligence warned the Washington Post that Jerusalem will likely act against it. Implementation talks stalled within 24 hours as Vance cancelled his trip; Israeli strikes killed 18 in Lebanon on Friday, straining the parallel ceasefire. Charmaine Lo's weekend column examines a ten-year authentication gap and a lab that grounded its own model on disclosure, a framework every enterprise CISO needs before their Fortinet patch window closes. Watch whether Tehran files a fee schedule with the International Maritime Organization before Monday open.