In 1991, Munich smart-card maker Giesecke+Devrient delivered the first commercial SIM card to Radiolinja, the Finnish operator behind the world’s first GSM network. The chip had one job: prove to the network that a phone belonged to a paying subscriber. Thirty-five years later, the same chip sits behind bank accounts, mobile wallets and government services […]

A settlement report lands on a wholesale carrier’s desk in early October, and one line stands out. A small island nation—rarely more than a rounding error in the traffic mix—suddenly accounts for tens of thousands of terminating minutes. No alarm went off when those calls entered the network. Nothing blocked them at setup. By the […]

A fraudulent call blocked after it connects has already done its job. For carrier fraud and revenue assurance teams, that’s the uncomfortable truth most defenses still ignore. For carrier fraud and revenue assurance teams watching Wangiri fraud spike again in 2026, that’s the current state of most existing defenses: networks built to analyze what already […]

Mateo runs a small hardware shop in Manila. On a Tuesday morning in 2026, his phone buzzed with a text from his bank: unusual activity detected, tap here to secure your account. Same sender name he’d seen a hundred times before. Same blue checkmark logic he’d trained himself to trust. He tapped. Ninety seconds later, […]