Số liệu gây sốc: Cuộc gọi “rác” tăng tới 300% chỉ trong một năm qua

15:12 20/12/2018

Theo hãng dịch vụ quản lý cuộc gọi thoại Truecaller, trong năm 2018 số lượng các cuộc gọi "rác" (spam call) chạm ngưỡng 17,7 tỷ cuộc gọi, tăng tới 300% so với năm 2017.

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