According to the International Telecommunications Union, there are now over six billion global mobile subscribers for an average global penetration rate of 87%. Counter to logic, phone calls aren’t the primary communication taking place on mobile devices – instead it is SMS text messaging.
In today’s mobile-centric world, companies are also increasingly using SMS to interact with their customers. Banks are entrusting Mobile Network Operators (MNO) with the delivery of payment authorization confirmations and other financial updates; doctors, dentists and hairdressers use SMS to send appointment confirmations and reminders, and restaurants are adopting it so diners can track wait times.
The majority of SMS spam falls into the category of scam or fraud, defined as a campaign to entice the recipient into taking some action that unwittingly results in information disclosure or financial loss.
Social engineering factors heavily in scam and fraud campaigns and, as a result, the exact pitch, or hook, used by the scammer varies by geographical region.
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