Codes nobody types = bots

Real users enter their code almost every time. Under 30 to 40% entered? Red flag. How SMS pumping works.

Cut the country list first. Pull texts by country and hour. Then ask your provider for a credit: many refund documented toll fraud.

App checks help, not alone

Use app attestation, like Firebase App Check, Apple App Attest or Play Integrity, and keep tokens short-lived.

Bots send your app's texts. You pay.

Good to know

Started by dowevibe · Improved by 1 other · Oct 2026