A comprehensive, end-to-end fraud prevention solution

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A comprehensive, end-to-end fraud prevention solution

Protect revenue and reputation

Minimize ongoing attacks with active fraud prevention to protect your brand and end users

Real-time alerts and blocking

Set up automatic blocking and/or notifications of suspicious traffic based on your preferences

Reduce operational costs

Create rules to control risk exposure with a dashboard and customizable settings

Fraud Defender Features

Protect against fraud with this easy-to-implement alert and blocking system. 

  • Implement real-time monitoring, alerting, and notifications to help stop fraudulent activity in its tracks for SMS and voice (including Verify 2FA) traffic.

  • Mitigate risk exposure with flexible rules and settings via the Vonage dashboard based on your specific needs.

  • Set up controls to determine what actions to take by account, country, and network.

  • Leverage built-in templates and recommendations to filter traffic from high-risk countries.

  • Stop high-volume Artificially Inflated Traffic (AIT) with alerts and traffic burst protection.

Protect your revenue by upgrading to Fraud Defender Advanced

Fraudsters generate high volumes of fake traffic via mobile applications or websites. Last year, up to 35.7 billion fraudulent Artificially Inflated Traffic (AIT) messages were sent, with brands incurring costs of $1.16 billion due to fraudulent messages. Fraud Defender Advanced empowers you to mitigate the economical impact of AIT attacks.

  • 35.7B AIT messages sent annually

  • $1.16B Annual cost of AIT attacks

  • 4.8% of global messaging is fraudulent

 

 

Product Features

Standard

Advanced

Premium

Subscription Fees

No charge

$44

$220

 Usage-based Savings

Not applicable

90% of blocked traffic*

90% of blocked traffic*

Volumetric Fraud Alerts

Manual Traffic Rules (Allow/Block)

Alert Actions (basic automation)

Artificially Inflated Traffic (AIT) Alerts

SMS Burst Protection

Network Blocks

Custom Alerts

Trusted Numbers

*With Fraud Defender AIT Protection, Vonage automatically blocks fraudulent traffic, avoiding the full cost of standard fraudulent traffic fees.

Users pay only 10% of standard fraudulent traffic fee totals, resulting in a 90% reduction of cost.

 

 

Your Guide to A2P Messaging Fraud Prevention

Fraud within the A2P (application-to-person) messaging industry is on the rise. Find out how you can combat it.

Explore infographic

 

 

 

Outside the US: Local Numbers
Wed Apr 29 2026 16:04:06 GMT-0400 (Eastern Daylight Time)