A $7.49 PortaPow 3.5-foot USB-C to USB-A data cable Remove non-product link doesn’t physically clip the data wires, and doesn’t allow quick-charging either, apparently. Portapow isn’t the only game in town, though they seem to be one of the most popular. The red version listed above is in stock, and available, but if you want to buy in bulk, The $27.99 PortaPow five-pack Remove non-product link is only available on Nov. The only problem? They’re in high demand, and many are sold out through the Thanksgiving holidays. Even better, it reportedly preserves the quick charging capability, with iOS, Samsung and “universal” modes. (Data lines also communicate with the charger, allowing it to negotiate the “fast charge” capabilities on most phones.) The PortaPow data blocker mentioned above physically removes the data lines, making it nearly impossible for an attacker to access your phone via the charging cable.
Most USB chargers preserve the data lines, so that there’s a theoretical, physical channel to your phone through a hardwired charger. (The Wall of Sheep publicly called attention to the problem a few years back.)
#Usb block charger android
BadUSB, another attack, could infect Android devices with malware. “Juice jacking” was more of a thing a few years ago, when Samsung Galaxy devices were proven to be able to receive commands over the USB cable, even when locked. The problem is that you have absolutely no idea who has manufactured that charger, or if it’s the original. But at airports, hotels, and other locations, people will happily plug in their phones to an available USB charger to save their phone running out of juice. Mix in fatigue from an early-morning flight or three-hour layover, screaming kids, and the overwhelming desire just to tune out for a while, and yeah, people are going to be tempted. Hackers can use those devices to upload your payment data for their own use, and most people wouldn’t use a reader that looks suspicious. Why? Well, you’ve probably heard of credit-card skimmers-sleeves that can fit over a credit-card or debit-card reader at at an ATM or gas station.
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