The banking system will become increasingly fraud resilient with better real time detection of fraud.
Your phone may even have its own AI on your side listening in on the call and sounding the alarm when a number from Nigeria starts using an AI voice pretending to be your son.
Phone numbers in Australia are also all tied to ID. If there is a will to fix the system, it can be done.
As a result, it's very difficult for me to use a lot of Chinese websites and it's a pretty sizable barrier to hardware development when Chinese citizens can just download the relevant datasheet off some Chinese forum in 5 minutes, but I have to sign NDA's with western companies or figure out how to WeChat a Chinese OEM to send me their datasheets.
We've had phone fraud for decades, and the system has dragged its heels forever. I genuinely don't know if even this will be enough to address phone spam.