What is Juice Jacking? A New Method That Can Steal Data from Public Chargers

Have you ever charged your phone at free charging stations available at airports, malls, cafes, or waiting areas? At first glance, this facility seems practical and helpful, especially when your device’s battery is nearly depleted in the midst of activities. However, behind its convenience, there is a cybersecurity risk that must be heeded, one of which is juice jacking. Juice jacking is a term for a cybercrime method that exploits public USB ports to steal data or insert malware into users’ devices. This threat can occur when the charging cable or port not only supplies electricity but also transfers data without the device owner’s knowledge. As a result, users not only lose battery power but also risk losing personal data stored on their phone. So, what is meant by juice jacking? Here is a detailed explanation. This method is feared to occur when someone charges a phone, tablet, or other device at public charging stations available at airports, hotels, shopping centres, or other public places. In this scenario, the USB port that appears to be an ordinary charger can also be used to transfer data, not just to supply electricity. The term has gained renewed attention following a warning from the FBI through its Denver field office in April 2023, urging the public to avoid using free charging stations in public places. The FBI stated that cybercriminals have found ways to use public USB ports to insert malware and monitoring software into victims’ devices. A similar warning was also updated by the Federal Communications Commission (FCC), which described juice jacking as one of the cyber theft tactics that needs to be wary of. If the USB port used has been modified or compromised, the connected device may receive data access without the user’s awareness. In the worst case, perpetrators can attempt to install malware, steal files and passwords, or even lock the victim’s device. Nevertheless, several cybersecurity experts assess that the risk of juice jacking in the real world is not as great as often imagined.