AT&T suffered its second high-profile incident of the year when customers spent hours unable to call people on other carriers — a failure of the unglamorous interconnection plumbing that makes separate networks feel like one phone system. The week also delivered an early warning that would define the summer: security researchers tied a wave of Snowflake cloud-account breaches to infostealer malware and missing multi-factor authentication, with Ticketmaster and Santander already implicated. And Nvidia blew past $3 trillion in market value, overtaking Apple as the AI trade rewrote the market's hierarchy. The FCC, meanwhile, proposed the first real rules for securing the internet's routing system.
The FCC closed its extraordinary regulatory month by fining the nation's largest wireless carriers nearly $200 million for selling customers' real-time location data to third parties without consent — the biggest privacy enforcement in the agency's history. On Capitol Hill, UnitedHealth's CEO admitted under oath that the company paid a $22 million ransom over the Change Healthcare attack, and that intruders got in through a single server lacking multi-factor authentication. Apple then closed the week with the largest share buyback in corporate history — $110 billion — as iPhone sales fell 10% and the company teed up its AI reveal.