datajacking

Datajacking refers to the unauthorized access and extraction of sensitive data from a device, typically through a physical or logical interface. The term is often used in the context of mobile devices, particularly smartphones, where attackers exploit vulnerabilities in communication protocols or hardware connections to intercept data. Unlike traditional cyberattacks that rely on network-based exploits, datajacking often involves direct physical access or proximity-based attacks, such as those targeting Bluetooth, USB, or wireless charging ports.

One common method of datajacking involves manipulating a device’s data jack—a physical connector used for charging, data transfer, or debugging. Attackers may insert malicious hardware, such as a custom USB cable or a compromised charging adapter, to intercept data transmitted between the device and a computer or power source. In some cases, specialized tools like "badUSB" devices can be used to simulate legitimate peripherals while secretly extracting or modifying data.

Another approach involves exploiting wireless interfaces, such as Bluetooth or NFC (Near Field Communication), to establish unauthorized connections. For example, an attacker might position themselves within range of a victim’s device and use a rogue Bluetooth device to intercept sensitive information, such as passwords or messages, transmitted over an unsecured connection. Similarly, vulnerabilities in wireless charging standards, like Qi, have been demonstrated to allow attackers to extract data from nearby devices without physical contact.

Datajacking poses risks to both personal and corporate data, particularly in environments where devices are frequently connected to public or untrusted networks. Mitigation strategies include using encrypted connections, disabling unnecessary ports or interfaces, and employing hardware-based security measures like secure boot processes. Regular software updates and user awareness of potential risks also play a crucial role in reducing exposure to such attacks.