https://www.theregister.com/2025/05/18/ex_nsa_scattered_spider_call/
… “But I got to listen to the phone calls, and those guys are good,” [Jon] DiMaggio told The Register. “It sounded legit, and they had information to make them sound like real employees.” … “One of the challenges that defenders have is: it’s not the shortage of network alerts,” he added. …
TL;DR : have the right info, and are hitting all the doors at the same time…
Regards