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The computer's response is sent back to the phone, generally in a basic format that can easily be seen on the phone display. Messages sent over USSD are not defined by any standardization body, so each network operator can implement whatever is most suitable for its customers. USSD on a Google Pixel device (2018). The user submits a code ...
USSD gateway is based upon the ability of the delivery agent or the source to send and receive USSD messages. A USSD is a session-based protocol. A USSD is a session-based protocol. USSD messages travel over GSM signalling channels, and are used to query information and trigger services.
A card reader is a data input device that reads data from a card-shaped storage medium and provides the data to a computer. Card readers can acquire data from a card via a number of methods, including: optical scanning of printed text or barcodes or holes on punched cards, electrical signals from connections made or interrupted by a card's punched holes or embedded circuitry, or electronic ...
These scanners are legal and can be bought in regular electronics stores. Most modern mobile telephones running Android OS have a built in NFC reader that can be used to unlawfully scan contactless payment cards. A criminal can hide the scanner e.g. inside a glove or a bag, and then place it close to the victim and wirelessly steal the victim's ...
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The use of USSD increased by 14.5 per cent in March 2020, due to COVID-19 restrictions and in June same year, the value in monetary term was put at N390 billion and monthly average value of USSD transactions rose to N230 billion. Guaranty Trust Bank (GTB) alone reported ₦3.89 trillion in USSD transaction value for 2020. The USSD service ...
The new handset also has bigger screens than before, going from a 7.6-inch internal display and a 5.8-inch cover screen to an 8-inch internal display and a 6.3-inch cover screen.
A contactless smart card is a card in which the chip communicates with the card reader through an induction technology similar to that of an RFID (at data rates of 106 to 848 kbit/s). These cards require only close proximity to an antenna to complete a transaction.