Notes on SMS pumping, verification fraud, and the mechanics of stopping it.
SMS pumping is fraud aimed at your balance, not your data. Cheap to run, expensive to absorb, and it clears the checks most teams have.
Read →The same IP answers two questions — one customer, or one network — so it’s keyed two different ways.
Read →Get the end-user’s IP wrong and you bucket every user together and poison the shared signal. So Verifence never guesses it.
Read →You can protect a number you never keep. Verifence hashes before it keys, logs none of it, and loses no accuracy for the restraint.
Read →Thousands of real users share a handful of carrier IPs. Reputation is read before velocity so a farm behind them doesn’t spend everyone else’s budget.
Read →AIT hides in traffic that looks normal one request at a time. The tells are in the aggregate — send spikes to new ranges and a confirmation rate that never follows.
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