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USB Juice Jacking: How to Stay Safe While Charging Your Phone

By Jon Cohen

USB juice jacking is a growing concern for anyone who uses public charging stations to charge their devices. It's a relatively new type of cyberattack that involves hackers exploiting USB ports to steal data, install malware, and even lock users out of their own devices. In this article, we'll dive deeper into what USB juice jacking is, why it's important to be aware of it, and how you can protect yourself from falling victim to this type of attack.

What Is USB Juice Jacking?

USB juice jacking is a type of cyberattack that exploits USB ports to steal data or install malware on a user's device. The term "juice jacking" comes from the fact that attackers use the power provided by USB ports to carry out their malicious activities. When you connect your device to a public charging station, you're essentially giving the station access to your device's data and files. And if that charging station has been compromised, hackers can use that access to steal your information.

Why Is USB Juice Jacking Important to Be Aware of?

USB juice jacking is a significant threat to anyone who uses public charging stations, such as those found in airports, cafés, and hotels. It's an easy attack to carry out, and hackers can steal valuable data such as passwords, credit card numbers, and other personal information. And, in some cases, attackers can install malware that can take control of your device or lock you out of it entirely.

The potential harm caused by USB juice jacking is not limited to individuals. Companies and organizations are also at risk, especially those that have employees who use public charging stations to charge their work devices. If a hacker gains access to an employee's device, they can potentially steal confidential business information or install malware that can compromise the entire organization's network.

How Do I Protect Myself from USB Juice Jacking?

The good news is that there are ways to protect yourself from falling victim to USB juice jacking. Here are some tips to help you stay safe:

  1. Use your own charging cable: Whenever possible, bring your own charging cable and use only that cable to charge your phone. By doing this, you can be sure that the cable is safe and hasn't been tampered with.

  2. Use a portable charger: Another option is to use a portable charger that you bring with you. These devices allow you to charge your device without having to use a public charging station.

  3. Use a data blocker: A data blocker is a small device that you can plug into a USB port to prevent any data from being transmitted. This device blocks the transfer of data while allowing power to flow through, so your device can still charge.

  4. Be cautious of public charging stations: If you must use a public charging station, be cautious. Look for charging stations that are provided by reputable sources, such as airports or hotels. Avoid using charging stations that are unattended or in remote locations.

In conclusion, USB juice jacking is a growing concern for people who use public charging stations. Hackers can use USB ports to steal data, install malware, or lock users out of their devices. It's important to be aware of this threat and take steps to protect yourself. By following the tips mentioned above, you can keep your personal and business data safe and secure.


Jon Cohen’s contributions can be found on radio, TV, and print media. Jon makes “geek speak” understandable for the masses and has been a voice in the tech community for over 20 years. A former “Geek Squad” member as well as an “Apple Genius,” he offers a fresh perspective on technology, photography, and social media. Twitter: @cohenHD

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