> I don't doubt that T-Mobile could have done more, but it's also frustrating to see this trope that spending more money on security is some type of silver bullet. It's not.
So true. A problem is that "spending money on security" is so nearly always a synonym for increasing the infosec budget under the CISO. Which is useful, yes, but only a partial solution. A bigger ROI would be to spend it on developers who are experts in security and building a culture that cares. But even in enterprise security companies (most of my career), product security is so often seen as a checklist that infosec will take care of, not a core engineering competency.