Only 1 in 5 Mobile Operators Believe GSMA/3GPP Security Guidelines Cover All Signaling Threats
The Cellusys-Kaleido signaling security survey contains many other statistics that will trouble risk managers and ordinary phone users.
Academics Recommend Mix of Machine Learning and Premium Rate Number Monitoring to Detect IRSF
Researchers Merve Sahin and Aurélien Francillon claimed their method detected 98% of IRSF calls with 0.28% false positives.
The Changing Risk Profile for Revenue Share Numbers
The PRISM database of revenue share numbers keeps needing to be refined to allow for changes in the methods used by IRSF and wangiri fraudsters.
Choosing Quality over Least Cost Routing Provides Better Long Term Value
How can smaller international carriers compete in a high volume, low margin business? The answer is to deliver quality and prevent fraud.
RAG TV: Colin Yates on IRSF and Europol
Why are so few telco fraudsters punished? Is it sufficient to block the top ten IRSF destinations? Does RA suffer a lack of innovation? These and other questions were covered in this week’s episode.
Court Victory for Alleged Telco Fraudster Will Discourage Future Police Action
Two Maltese operators suffered losses of USD32,300 after Vodafone Greece SIMs were used to make calls to unallocated UK numbers.
New IRSF Data Shows There Are No ‘Low Risk’ Destinations Any More
International revenue share fraud (IRSF) is spread far more widely than before, says data from fraud expert Colin Yates.
Mobileum, Syniverse and Tomia Named Top Providers of IRSF Prevention
Instead of telling us that International Revenue Share Fraud is important, vendors should state what they can do to prevent it.
Is There a Rising Problem with Allocated but Unused Number Ranges?
Biaas argues fraudsters exploit destinations on carrier price lists which cannot be used for normal international termination.
Expert Says 15% of IRSF Sent to B-Numbers Too Long or Too Short to Be Valid
National dial plans define how many digits belong in a valid number. Guy Howie says fraudsters and telcos ignore those rules.