Security researchers have discovered malware pre-installed on a Chinese smartphone and designed to facilitate mobile ad fraud on a massive scale.
Upstream’s Secure-D Lab said it recorded 19.2 million suspicious transactions, which would have covertly signed-up unsuspected users to subscription services without their permission.
It traced them back to around 200,000 Transsion Tecno W2 handsets used mainly in Egypt, Ethiopia, South Africa, Cameroon and Ghana — although suspicious...
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