How realistic would it be to send (anonymous) mass sms messages with phishing or other malicious links to those numbers? I’m occasionally getting sms message with bogus sender info (i cannot reply, nor get contact info), always wonder how spammers pull that off so easily.
As a challenge, I try to takedown these things by reporting them to Google Safebrowsing, their SSL provider (if they have one), their host, their URL shortener, etc.
Though in Canada, I'm seeing them apply some cloaking measures so they don't get removed as quickly.
I think there's two streams of this:
1. a crooked telecom that has low-level access
2. buy a bunch of SIM cards and dump them into one of these aliexpress machines that has 16 wireless modems in them that let you do whatever you want:
