That Free Phone Charger at the Airport Might Be Stealing Your Data

It’s called “juice jacking,” and it’s exactly as sketchy as it sounds.

USB cables don’t just carry power — they carry data too. That’s the same reason you can plug your phone into a computer and transfer photos. When you plug into a public USB port, you’re opening that same data connection with whatever is on the other end. And you have no idea what that is.

Cybercriminals can exploit that connection to steal personal information or load malware onto your device — and it can happen quickly. Some cybersecurity researchers warn that even a brief connection could be enough time for an attacker to get what they came for.

The FBI has issued warnings about this, specifically calling out public USB charging stations including those in airports. The criminals either tamper with the charging station itself or swap in a rigged cable. Either way, your phone sees a charger. It’s actually a trap.

If you plug in and your phone asks you to pick between “share data” and “charge only” — always pick charge only. The FCC says exactly that. On Android, you’ll sometimes see a dialog pop up asking to allow file transfers. Tap no and move on. iPhones will ask you to “trust” a connected device — always decline on unknown public hardware.

The safest moves are simple: carry your own wall adapter and plug into a regular power outlet instead of a USB port. Or grab a portable battery pack and charge from that. If a USB port is your only option, a “charge-only” USB cable — one that physically can’t transfer data — blocks the attack entirely.