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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.
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).
Airtel launched 4G services on mobile from February 2014. The first city to get the service was Bangalore. [24] [25] Airtel has started their 4G services in Karnal and Yamunanagar in Haryana on 16 June 2015. [26] Airtel 4G trials has been started in Delhi from 18 June 2015. [27] Airtel had 95,173,000 4G subscribers as of June 2019. [28]
It paid US$1.44 billion (₹ 79.1 billion) for the 3G spectrum. [8] The company, as of November 2012 had about 5 million 3G customers. Following the key players in 3G, Aircel also slashed its 3G tariff. [16] In 2011, Aircel became the launch partner for Apple iPhone 4 along with Bharti Airtel. [17]
Key takeaways. Check your balance online, on the phone, through your bank's mobile app, at the ATM and with bank statements. A bank teller can provide account details in person.
A selection of mobile phones that can be cloned. Code-Division Multiple Access (CDMA) mobile telephone cloning involves gaining access to the device's embedded file system /nvm/num directory via specialized software or placing a modified EEPROM into the target mobile telephone, allowing the Electronic Serial Number (ESN) and/or Mobile Equipment Identifier (MEID) of the mobile phone to be changed.
The IMSI is often used as a key in the home location register ("subscriber database") and the MSISDN is the number normally dialed to connect a call to the mobile phone. A SIM has a unique IMSI that does not change, while the MSISDN can change in time, i.e. different MSISDNs can be associated with the SIM.
Bharti Airtel will get an additional 178.5 MHz of spectrum in three bands—1800 MHz, 2100 MHz and 850 MHz—that are widely used for 4G, an area where Airtel is expanding fast to keep pace with Reliance Jio Infocomm. Airtel will also add about 13 million of Tata Tele's mobile subscribers as of April 2019 to its nearly 322 million users.