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iOS 5 is the fifth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iOS 4.It was announced at the company's Worldwide Developers Conference on June 6, 2011, and was released on October 12, 2011.
The Apple SIM is known as a Removable SIM with Remote Provisioning [5] – it is a special SIM card that may be configured with different operator profiles. This is in contrast to an embedded SIM, which is not removable and may also be remotely provisioned. It appears that Apple has begun to include both types of SIM in their newer devices. [6]
KDDI's au IC-Card Sierra Wireless AirCard 555R PC Card wireless modem for the China Unicom network with R-UIM interface (extension at the front). Removable User Identity Module (R-UIM, usually pronounced as "R-yuim") is a card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSM SIM card to CDMA phones and networks.
A typical SIM card (mini-SIM with micro-SIM cutout) A SIM (Subscriber Identity Module) card 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).
T = 15 is invalid in TD 1, and in other TD i qualifies the following TA i+1 TB i+1, TC i+1, TD i+1 (if present) as global interface bytes. Other values of T indicates a protocol that the card is willing to use, and that TA i+1 TB i+1, TC i+1, TD i+1 (if present) are specific interface bytes applying only to that protocol. T = 0 is a character ...
USSD can also be used to refill the balance on the user's SIM card and to deliver one-time passwords or PIN codes. Some operators use USSD to provide access to real-time updates from social-networking websites including Facebook and Twitter. [3] Between 2012 and 2018, the Wikipedia Zero project provided access to Wikipedia articles via USSD. [4]
A virtual base transceiver station (VBTS) [5] is a device for identifying the temporary mobile subscriber identity (TMSI), international mobile subscriber identity (IMSI) of a nearby GSM mobile phone and intercepting its calls, some are even advanced enough to detect the international mobile equipment identity (IMEI).
However, the security of this scheme depends on the security of the mobile phone system. In South Africa, where SMS-delivered TAN codes are common, a new attack has appeared: SIM Swap Fraud. A common attack vector is for the attacker to impersonate the victim, and obtain a replacement SIM card for the victim's phone from the mobile network ...