A set of commands and applications that enable mobile network operators to provide interactive services to users via SIM cards.
Description
The SIM Toolkit (STK) is a standard developed by the GSM Association that allows SIM cards to initiate actions that can be used for various applications and services. It provides a framework for mobile network operators (MNOs) to deliver interactive services directly to subscribers through their SIM cards. The STK enables the development of applications that can run on the SIM card itself, allowing for features such as menu-driven interfaces for users to access services, personalized content, and the ability to send and receive messages. This is particularly useful in the context of Non-Human Identities (NHIs), where devices (like IoT devices) require unique identification and communication capabilities. By utilizing SIM Toolkit applications, NHIs can interact with network services, perform transactions, and maintain connectivity in a secure manner. The flexibility of STK allows for various applications, from mobile banking to enhanced customer engagement for service providers.
Examples
- Mobile banking applications that allow users to check balances and transfer funds directly from their SIM menus.
- Interactive services like loyalty programs where users can view rewards and redeem offers via SIM card interfaces.
Additional Information
- STK applications can be updated remotely by the network operator, allowing for dynamic service offerings.
- Supports various protocols for communication, ensuring interoperability across different devices and networks.
References
- Security Operations for Non-Human Identities - The Hacker News
- The State of Non-Human Identity Security | CSA
- More SIM Cards Vulnerable to Simjacker Attack Than Previously ...
- Non-Human Identity Management: A Guide - Cycode
- What are Non-Human Identities? - OASIS Security
- What are Non-Human Identities (NHIs), and how do we secure them?
- What Are Non Human Identities, Their Challenges and Solutions?
- What is a Non-Human Identity? - CyberArk
- Shining the Spotlight on the Rising Risks of Non-Human Identities