Kevin Karhan 
@hkrn it's called #SS7 aka. "#SilentSMS"...
#Apple could do the objectively right thing and implemebt a #BasebandFirewall like #GSMK did over a decade ago...
@rival_elf It's really sad that besides a gew Phones that can run #SnoopSnitch there are only.extremely expensive aka. "call for pricing" phones from maufacturers like #GSMK that have a #BasebandFirewall to detect and mitigate #OTA attacks with #IMSIcatcher|s and other #Govware...