你的“数字足迹”

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Every time you go online you leave a trail.This is just like a real footprint.It reveals where you've been, how long you've stayed and what you've been doing there.Every time you register for an online service, send an email, download a video or upload a photo, the information can be accessed and your digital footprint can be revealed.Do you know how to take care of your digital footprint? Don't forget to log off when you leave a website, especially if you are using a shared computer.If you don't, someone can easily pretend to be you!
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