iTwin + Dropbox = SecureBox cloud encryption

Sections: Macintosh/Apple Hardware, Peripherals

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iTwin is a set of paired USB dongles that, when attached to two internet-connected computers, allows you to share files no matter where you are in the world. We reviewed that original feature here, and now the company has added another way to share your files; by linking the iTwin dongle to your Dropbox account, you can create an encrypted folder called a SecureBox.

You start with a connected iTwin pair attached to your computer via the USB port. The software will link to your Dropbox account and create the SecureBox folder within it. Anything you drop into that folder gets duplicated and encrypted using 256 bit AES technology. Please note that I said duplicated: unlike the normal way Dropbox works, SecureBox is treated like an external drive: the original file stays where it is, and the duplicate file is encrypted.

Disconnect the iTwin dongle, and the Securebox automatically closes. You can still see there are files in there, but the names are obsfusticated and they can’t be opened. Attach one half of the iTwin to another computer that you sync to using Dropbox, enter your password, and it opens the folder and decrypts the files.

You can still use the iTwin for its original purpose of sharing files over two computers using its own private sharing system, but if you use SecureBox, the company recommends keeping one of the halves in a safe place: after all, if you lose them both, there’s nothing you can do to decrypt your files. Part of the problem with this is keeping track of an iTwin half: it’s not a flash drive; there’s no dust cover and it doesn’t feature any way of, say, attaching it to a keyring. If you’re concerned about losing the key, the iTwin software still features the ability to remotely invalidate the dongle using a code you generate when you first use the device.

If you’re a fan of Dropbox but also need a secure way to transfer and sync files, iTwin with the new SecureBox should be right up your alley. Not only do you get the software encryption, but you get a physical key that both makes decryption a synch but keeps others away.

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