https://www.uccrab.org/2017/09/a-lesson-about-toll-fraud-via-sip.html
I had Skype for Busiess EV customer contact me saying one of their call center agents couldn't call a delear in Guatemala (For reference, th...
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https://www.trendmicro.com/vinfo/it/security/news/internet-of-things/toll-fraud-irsf-criminals-monetize-hacked-phones-iot-devices-telecom-fraud
A critical factor contributing to the increasing expenses on mobile phones is fraud. Recently, the cost of criminal telecom equipment has decreased to the...
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