[grupthink]

Wouldn't your iPhone still receive spam SMS text messages with Apple Messages? And isn't Apple Messages commonly exploited by NSO Group (Zero-clicks)? Maybe I'm wrong, but this does not appear to be very fort-like.

[rezonant]

Yes. I believe people are just saying that they assume unknown-contact SMS is spam and that sort of sounds like Apple's SMS spam filtering isn't very good.

[dwaite]

For iPhone there are two tiers - the carrier provided SMS spam filtering, and apps written to provide such filtering[1].

1: https://developer.apple.com/documentation/sms_and_call_repor...