International Revenue Share Fraud (IRSF) – A threat operators cannot ignore.

In the most recent CFCA fraud loss survey, International Revenue Share Fraud has once again emerged as one of the top 5 global fraud loss types. However, compared to the results in 2011, International Revenue Share Fraud (IRSF) has now claimed the top spot and is also the primary emerging fraud threat globally, highlighting the undeniable reality that the threat of IRSF and Wangiri cannot be ignored.


Fraud Losses CFCA2013Source: CFCA Global Fraud Loss Survey 2013.

While the total communications fraud loss is estimated to be $46.3 billion annually – a 15% increase from 2011, IRSF fraud loss is estimated to be $1.8 billion.

So what should operators do to combat IRSF fraud? Bolstering the Fraud Management System with additional rules is perhaps the strategy that most operators would consider. But with what remains the question? Additional rules, thresholds and disallowing calls to and from high risk destinations may not help because there are over 220 countries from which IRSF can originate.

In most IRSF incidents, fraudsters will first call a Test Number to confirm that the destination country and number range can be reached from their calling location and from the device they are using to originate the calls. This modus operandi has led us to create a real time database of Test Numbers that are frequently advertised by IPRN providers in order to attact potential rogue players to drive traffic to such premium rate numbers.

Our Rombus IRSF databases have a collection of over a million IPRN numbers that are updated in real time which can be used as a hot list in your existing fraud management system. A hotlist alert from an IRSF number called will initiate an investigation and identify a pending IRSF attack, or provide confirmation that one has started.

Rombus IRSF Database – Learn more >

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