I thought SMS gateways weren’t really used anymore and the way to go was to buy a bunch of prepaid unlimited SIMs and blast out messages at a below-detection ra

I thought SMS gateways weren’t really used anymore and the way to go was to buy a bunch of prepaid unlimited SIMs and blast out messages at a below-detection rate through thingies that rotate between 64/128/256 SIMs and 8-16 radios. Like shown here: https://au.finance.yahoo.com/news/how-one-man-allegedly-cost-aussies-millions-sending-17m-fake-text-messages-230734486.html https://au.finance.yahoo.com/news/how-one-man-allegedly-cost... The IMSI catching approach, wow!