Rebtel Catches 30% More Account Takeover Attempts While Securing International Payments

Rebtel Catches 30% More Account Takeover Attempts While Securing International Payments

Daniel Martinez

Dropping the cost of international calls by 98% made Rebtel a favorite of international users such as migrants, expats, and nomads. The addition of calling cards, online top up, and other financial services saw the company expand into new markets while keeping its roots in international calling. 

Unfortunately, accepting online payments opened the door to a new wave of transaction fraud. Daniel Martinez, Head of Operations and Risk at Rebtel, explains:

“Our main risk scenario is dealing with stolen cards. For money transfers, for example, we have a complete system to ensure that nobody is paying with a card that doesn’t belong to them. But we did our research and found a lot of [fraud prevention] providers who were not easy to integrate or outrageously expensive.”

What Daniel and his team really needed was the ability to extract more relevant data to feed it into their existing risk management system – without having to go through the whole rip-and-replace process. 

The solution came in the form of SEON, specifically the device fingerprinting module. Not only is it cost-effective, it’s also multi-purpose, as Daniel found that it could help with another form of fraud attack: account takeovers.

“SEON’s device fingerprinting module immediately showed strong results. When you go to our checkout and press “buy,” SEON gets the device data, scans it, scores it, and sends it back to our risk engine. I also realized it could help with takeovers, against fraud rings who have been trying to steal our customer accounts for years.”

When it comes to securing online payments, Rebtel feels much more confident accepting payments from anyone worldwide. But the level of protection the company can now offer to its valuable customers is what really surprised Daniel. 

“What’s really cool is the way you can set up rules. There is a whole bunch of logic that we’ve just started playing with – the velocity checks when you change the device, the amount spent over a month, and so on. It gives us much more confidence that we can safeguard our customers’ accounts in the long run.” 

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While it’s still early days in Rebtel’s exploration of the SEON’s features, Daniel is optimistic that numbers will continue to speak for themselves, as his team saw:

  • 30% decline in ATO attacks
  • 50% fewer manual reviews for suspicious account logins

Last but not least, Daniel can continue protecting Rebtel and its customers thanks to the ongoing contributions from the SEON Customer Success team.

“With the [SEON Customer Success] team, we just need a couple of clicks to set up new rules. Those guys are helping out almost daily, answering questions, giving tips and tricks – the specialist support is THE best feature.”

For more information about Rebtel, please visit

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Daniel Martinez
Head of Operations

Decline in ATO attacks

30 %

Fewer manual reviews for suspicious account logins

50 %

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