Fraud-monitoring-toll-fraud

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What is toll fraud?
In the paid fraud scenario, criminals target phone verification to generate a high volume of voice calls to premium rate numbers, which charge callers per call or per minute. If these calls are fraudulently generated from their own website, they are charged.



What can be done to prevent or detect SMS egypt telegram number database pumping and toll fraud?
Detect and deter bot attacks by implementing libraries like BOTD or CAPTCHA on your website.

Monitor one-time passcode (OTP) conversion rates and create alerts when rates drop.

Implement (exponential) delays between verification requests with the same phone number.

Offer alternative channels such as voice verification, not on the first attempt but, for example, on the third verification attempt.

Create a list of "allowed" or "blocked" destinations on your website.

Analyze IP and detect VPNs on your website.