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A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks.
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).
The SEC said Monday that a "SIM swap" attack was responsible for an unauthorized social media post that triggered market chaos and erased billions of market value in just minutes.
SIM swaps are often carried out through social engineering: A cybercriminal calls a cell phone provider such as T-Mobile and convinces an agent to transfer over the control of a phone number to a ...
The first big clue to who pulled off the FTX hack came on Jan. 30 when Ars Technica got its hands on a document laying out charges against three U.S. individuals who had engaged in SIM-swapping to ...
The term "subsidy" refers to the subsidization of cell phones sold to customers that purchase mobile phones as part of a contract with the mobile service operator. Many network operators provide these subsidies as an incentive for users to sign extended contracts, and use the subsidy lock as a means of protecting their investment. The ...
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.