Hi , I would like to buy a usb finger storage.
But I found that there are two type of it.
One have protection but the other have not.
What is the different between them and how they work ?
Finger storage? Are you referring to flash drives? If so, is the protection software based or is it something hardware related?
I do not see how that would be practical at all. Having a permanent USB drive attached to your hand that you needed to use would be annoying and would slow your typing down dramatically. I could see how the idea would have been interesting, but in practice it does not seem that it would be all that helpful. It would probably be more of a hindrance. Now an USB glove that I could see being useful, however then what is the advantage over the USB glove vs. the USB keychain. Would there be one?
Another note on the USB finger, would you still be able to go through metal scanners? Probably not, which would mean you just added more of a hindrance to yourself if you do any travelling. I just do not see the difference.
On to the OP.
Most USB drives that I have found that say they come with encryption require the computer you are going to use it on to have the software or drivers to read the data on the disk. Thereby not really making it more secure, in my opinion, except if it was stolen, lost etc and the one wh stole it did not have the software. Still that could be beaten and the data retrieved. The other common option is that the USB software password-protects the data in which case you need to know the password to get to the data. As always there is other ways around this, as well.
That is some of the ways that some companies use to "encrypt" data on their commercially sold USB drives. In the end these two ways do not matter. Also, you can do either of these two methods without "special software" from the manufacturer.
I'm glad you found one. It looks like at least some of theirs retract into the case to protect the connector, and apparently they specialize in built-in encryption strong enough that major corporations are comfortable carrying their most sensitive documents around. We'd love to know how easy it is to use, and if they have means to recover the encrypted data if you misplace the password but still have some installation info saved for password recovery.
The retraction feature should already protect the connector better than most of mine are. The only way I can see to protect it better would be sealing it in a waterproof bag with some moisture absorbent material.