I'm definitely going to talk to my carrier after reading about SIMJacking. This is a new-ish SIM which I've transitioned to over a short time. Almost from the get-go I have had spam SMS from Didi, the ride share company. I've had four in total over some weeks and I got one that morning early. I never open it and the number should be blocked from the first instance. I've just now read about a massive scam involving Didi impersonators. I don't have Did app, NEVER used Didi ever, and don't ride share full-stop. Now I'm paranoid. The first time it happened was hours after initializing the SIM. I was thinking "brand new SIM and number on a new phone and new carrier, haven't even called anyone yet, and the spammers fucking found me!"
Fucking technology! I have been using an old 3G dumb phone for calls and text and had NO issue, No spam, No advertising, No hacks for decades. Being forced off the 3G network I try to get the most secure "smart" thing I can find to use, leave it stock-ish, harden it a little and still dumb shit happens almost immediately. Is it possible someone at the carrier is feeding scammers/spammers new numbers to attack?