Wangiri 2.0 (Web-Initiated Callback Fraud)

Wangiri 2.0 is an evolution of Wangiri callback fraud where victims are lured — via web forms, chat prompts, or app dark patterns — to submit their phone number, which is then called back from a premium-rate range in a way that traffic-pumps IRSF revenue. It moves the trigger from a physical missed call to a web-scale click-fraud attack surface.

Categories: Radio Access NetworkFraudOperations and Business

Wangiri 2.0 in context

The radio access network is the layer where mobile devices attach to the operator's infrastructure. Attacks in this layer include IMSI catching, rogue base stations, downgrade attacks and jamming, and defenses hinge on mutual authentication, integrity-protected signaling and Open RAN supply-chain hygiene.

Telecom fraud costs operators an estimated $40+ billion per year. Common vectors include International Revenue Share Fraud (IRSF), Wangiri callback scams, SIM box bypass, PBX hacking, subscription fraud and A2P grey routing. Effective defense combines real-time signaling analytics with CDR-side machine learning.

To place Wangiri 2.0 in the wider telecom-security picture, review Revenue Share Fraud, Wangiri, Flash Call Fraud, PBX Hacking, Billing System and Machine Learning (ML).

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