[ti:Why You Should Avoid Public USB Charging Areas] [by:www.51voa.com] [00:00.00]更多听力请访问51VOA.COM [00:00.04]Your telephone is running low on power [00:04.28]while you wait to fly out of an airport. [00:08.68]Other people have connected their cell phones [00:13.40]and other devices to electrical outlets in the waiting area. [00:20.88]Like you, they are preparing for the flight. [00:26.00]Then you discover a public USB charging area close by. [00:33.44]You quickly reach for a charge cord [00:37.72]and connect your phone to the charging hub. [00:42.80]Then you take a deep breath and sit back, [00:47.80]happy to get the power for free. [00:51.48]What could go wrong? Plenty. [00:55.55]In addition to providing electrical current, [01:00.00]phone charge cords can send and receive data. [01:06.44]That free USB charging hub at an airport, hotel [01:13.84]or other public place may not only charge your phone. [01:20.12]It also could be transferring information to and from the device. [01:28.24]The USB charging hub could be connecting to your phone [01:34.04]and copy your contact list, email and text messages, [01:40.80]voice mails, photographs and videos. [01:45.80]It can also copy passwords, banking information, personal contacts [01:53.36]and any other information stored on your phone. [01:59.12]That public USB hub may even download programs, [02:05.47]such as malware and tracking software, to your phone. [02:12.28]This form of data transfer is known as "juice jacking." [02:19.12]If you want to charge your phone while traveling, [02:23.56]you have other choices that do not increase your risks. [02:29.72]Here are ways you can avoid juice jacking: [02:35.00]Connect your phone only to electrical outlets [02:39.52]so data transfer is not possible. [02:43.60]An available outlet may not be as near as a USB charging hub, [02:50.76]but the few extra steps may keep you safe. [02:56.04]It is better to use a distant wall outlet than a nearby USB charging hub. [03:04.92]Carry a cord that only transfers electricity, not data. [03:11.68]Be sure to mark the cord so you do not accidentally use it [03:17.96]when you need to transfer data, [03:20.56]such as saving photos to your computer. [03:25.40]Carry an extra, fully-charged battery. [03:29.60]Having one means you can charge your phone without having to worry about [03:36.76]carrying a special cord or finding a power outlet. [03:42.20]You can charge your phone with the extra battery wherever you are, [03:48.00]even when you are far away from an outlet. [03:52.76]If you must use a public USB charging center, [03:58.28]make sure to turn off your phone completely. [04:02.64]This may or may not prevent data transfer. [04:07.52]But it will reduce the chances of it happening, [04:11.48]depending on what phone you have. [04:15.60]Remember to fully charge your phone before you leave home or work. [04:22.74]iOS and Android operating systems [04:27.36]have security programs designed to prevent juice jacking. [04:33.96]But the safest way to charge your phone is to avoid public USB hubs. [04:42.83]A few years ago, a computer security conference was held in Las Vegas, Nevada. [04:52.56]One security company set up USB charging areas that had video screens. [05:01.32]The screens showed the message: Free Cell Phone Charging. [05:07.48]But when conference attendees connected their phones to the charging centers, [05:15.24]the screens turned red and showed this warning: [05:20.64]"You should not trust public kiosks with your smart phone. [05:27.24]Information can be retrieved or downloaded without your consent. [05:34.44]Luckily for you, this station has taken the ethical route and your data is safe. [05:42.84]Enjoy the free charge!" [05:46.04]Brian Markus is chief executive officer for Aires Security, [05:52.68]which set up the USB hubs. [05:56.92]He explained that the purpose was to show how even security experts [06:04.36]could be persuaded to charge their phones at such centers. [06:11.04]Markus told KrebsOnSecurity, [06:15.24]"Anyone who had an inclination to could put a system [06:20.60]inside of one of these kiosks that when someone connects their phone [06:26.96]can suck down all of the photos and data, or write malware to the device." [06:36.04]Naturally, not every USB charging hub is operated [06:42.30]by those who are trying to take data from your phone [06:47.20]or download malware onto it. [06:50.72]Many charging stations just do what they say, [06:55.16]charge your phone for free. [06:57.56]But you should know that you are taking a risk [07:02.08]when you connect to a public USB charging hub. [07:08.12]It is better to be safe and charge from an electrical outlet [07:13.48]rather than a USB port. [07:17.08]I'm Ashley Thompson. 更多听力请访问51VOA.COM