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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.
Over 1,000 victims lost more than $48 million to SIM swap crimes in 2023, according to the FBI’s Internet Crime Complaint Center. The reason SIM swapping is so alarming is it doesn’t require ...
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).
Vodacom South Africa provides 3G, 4G, and UMTS networks in South Africa, and also offers HSPA+ (21.1 Mbit/s), HSUPA (42 Mbit/s, 2100 MHz), Wi-Fi, WiMAX, and LTE services. Vodacom was the first cellular provider to introduce LTE in South Africa. [12] On 21 October 2015, Vodacom launched its fibre product to the home user. [13]
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]
On 8 July 2010, Ofcom issued a final statement retaining the donor-led process, mandating a two-hour PAC release time, and reducing the porting time from two working days to one working day. [6] In decentralized MNP models, a Flexible Number Register (FNR) may be used to manage a database of ported-out and ported-in numbers for call routing.
Vodafone and Telkom then had a 50% stake each in Vodacom. Vodafone now owns 57.5% of Vodacom after purchasing a 15% stake from Telkom. [69] On 9 October 2008, the company offered to acquire an additional 15% stake in Vodacom Group from Telkom. The finalised details of the agreement were announced on 6 November 2008.
Mobile market in South Africa is controlled by four cellular providers: Vodacom, MTN, Cell C, Telkom (Mobile), which is run by Telkom, [6] [7] With Vodacom and MTN controlling the 75% of the market share, ICASA considers that mobile brand services are highly concentrated in the country.