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A personal unblocking key ( PUK ), sometimes called personal unblocking code ( PUC ), is used in SIM cards to reset a personal identification number (PIN) that has been lost or forgotten. Most mobile phones offer the feature of PIN protection. After switching on the phone, if the PIN security function is active, the user is required to enter a ...
SIM swap scam. 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.
This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States.
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 ...
Simjacker is a cellular software exploit for SIM Cards discovered by AdaptiveMobile Security. 29 countries are vulnerable according to ZDNet. The vulnerability has been exploited primarily in Mexico, but also Colombia and Peru, according to the Wall Street Journal, where it was used to track the location of mobile phone users without their knowledge.
Unstructured Supplementary Service Data ( USSD ), sometimes referred to as " quick codes " or " feature codes ", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator 's computers. USSD can be used for WAP browsing, prepaid callback service, mobile-money services, location-based content ...
A typical SIM card (mini-SIM with micro-SIM cutout) T-Mobile nano-SIM card with NFC capabilities in the SIM tray of an iPhone 6s cell phone 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 ...
Proximus Group. The Proximus Group is a provider of digital services and communication solutions operating in Belgium and international markets. In Belgium, the company offers its main products and services under the brands Proximus, Scarlet, and Mobile Vikings. The Group also operates in Luxembourg as Proximus Luxembourg SA, with the brands ...