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Field notes on fraud that hides in healthy-looking traffic: what it costs, how to measure it, and where you can still stop it.

October 28, 20268 min read
The SMS Pumping Attack: Every Dashboard Reports Healthy While Your Bill Climbs
SMS pumping: requesting SMS codes that do not break authentication. From this article you will learn what the attack looks like in telemetry, why rate limits and CAPTCHAs don’t fix it, and the one place in the stack where you can still refuse to pay.

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