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A SIM swap scam (also known as port-out scam, SIM splitting, [1] simjacking, and SIM swapping) [2] is a type of account takeover fraud that generally targets a weakness in two-factor authentication and two-step verification in which the second factor or step is a text message (SMS) or call placed to a mobile telephone.
Vietnamobile had a market share (estimated based on revenues) of 1.75% in 2023. Its main competitors are Viettel with a market share of 57.6%, MobiFone with 22.52%, VNPT with 17.49%, the three large state-owned providers with a market share of almost 98%.
MobiFone held a market share of 22.52% in 2023. Its main competitors included Viettel with 57.6%, VinaPhone with 17.49%, and Vietnamobile with 1.75%. MobiFone, along with VinaPhone and Viettel, the three large state-owned providers, held a combined market share of almost 98%. [2]
A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).
An MVNO enters into a business agreement with a mobile network operator (MNO) to obtain bulk access to network services at wholesale rates, then sets retail prices independently. [1] An MVNO may use its own customer service, billing support systems, marketing, and sales personnel, or it could employ the services of a mobile virtual network ...
A mobile network operator (MNO), also known as a mobile network provider, mobile network carrier, mobile telco, wireless service provider, wireless carrier, wireless operator, wireless telco, or cellular company, [a] is a telecommunications provider of services that sells, delivers and maintains mobile telephony services to an end user.
Mobile country code Country ISO 3166 Mobile network codes National MNC authority Remarks 289 A Abkhazia GE-AB List of mobile network codes in Abkhazia MCC is not listed by ITU 412 Afghanistan AF List of mobile network codes in Afghanistan 276 Albania AL List of mobile network codes in Albania 603 Algeria DZ List of mobile network codes in Algeria 544 American Samoa (United States of America ...
Mobile broadband is the marketing term for wireless Internet access delivered through cellular towers to computers and other digital devices using portable modems.Although broadband has a technical meaning, wireless-carrier marketing uses the phrase "mobile broadband" as a synonym for mobile Internet access.