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How to encrypt an USB stick?

I have a lot of usb's that I frequently carry around with me, and equally frequently lose around me. Since some of the data on them I do not wish to be made public (it is nothing critical - just some personal documents, excel sheets and such that I don't want people to read if I can help it in some way - no direct damage occurs if they do get a hold of them, however, but still...) I was wondering what would be the easiest way to protect them on an usb stick.

I was wishfully thinking - is there some way to encrypt your data on an usb, then when you insert the usb some program asks you for a password, after which all your files seem "normal". If someone else inserts the usb into his/her computer and either does not start the program or enters the wrong password, then all he sees of the contents of the files as gibberish.

Is there such a thing? If not, what would you suggest for something like this?

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marked as duplicate by BloodPhilia, sblair, Gnoupi Aug 30 '10 at 15:19

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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Possible duplicate: superuser.com/questions/75177/how-to-encrypt-an-usb-stick (and all the questions listed there) –  Hello71 Aug 30 '10 at 14:25
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Don't lose your USB flash drive :P –  KronoS Aug 30 '10 at 14:27

2 Answers 2

up vote 1 down vote accepted

You can use encryption software for you USB flash drive. This is one that I found, but I'm sure there are plenty other out there.

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Yes, I was about to suggest TrueCrypt too. But there are a lot of other free ones available online too. Do a little searching. TrueCrypt is open-source, however, so use that. –  Antrikshy Aug 30 '10 at 14:34

Check this post, it recommends some free apps to protect your information.

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