Traveler Tom: Perfect! A free USB charging station at the airport. My phone's almost dead and I need to check my bank app before my flight! Hacker Helen: Another victim! While he charges, my modified USB port is copying all his data, installing malware, and accessing his accounts. He thinks it's just power, but USB ports transfer DATA too! Security Sam: STOP! Use your own AC adapter or bring a USB data blocker. Those 'charge-only' devices block data pins while allowing power. Or better yet, carry a portable battery pack!

Traveler Tom: Perfect! A free USB charging station at the airport. My phone's almost dead and I need to check my bank app before my flight! Hacker Helen: Another victim! While he charges, my modified USB port is copying all his data, installing malware, and accessing his accounts. He thinks it's just power, but USB ports transfer DATA too! Security Sam: STOP! Use your own AC adapter or bring a USB data blocker. Those 'charge-only' devices block data pins while allowing power. Or better yet, carry a portable battery pack!