Like public Wi-Fi, public USB ports in cafes and airports can’t be trusted. Connecting your device to one of them could result in a virus infection. Bring your own external battery pack, or find a standard wall socket instead.

When you buy anything from a USB thumbstick to a phone charging cable, don’t settle for any old option or buy exclusively based on price. Check the vendor and the outlet you’re buying from, since some products are technically faulty (e.g., cables that aren’t certified for the right voltages) and/or might put your data at […]

If you’re in an airport or cafe, you might be tempted to plug your device into an open USB port to charge it. This can be risky, since you don’t know if the port is compromised. Charge via a wall outlet or bring your own battery pack instead.

One of the side stories of a 2018 international summit in Singapore was the provision of USB-powered fans to members of the media. Such peripherals can be dangerous. They might carry malware that can hijack connected devices. Never plug in a peripheral that you don’t trust or that comes from an unknown vendor.