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SpiderOak 3.5 under Mac OS X
Software information
Initial releaseDecember 2007
Stable release4.0.9830
Latest release dateJuly 08, 2011(age 5)
Preview release4.0.9823
Preview release dateJune 16, 2011(age 5)
Development statusActive
Operating systemMac, Windows, Linux, iOS, Android
Available inEnglish
TypeOnline backup service
LicenseProprietary and GPLv3 (for some tools)

     Home | Software | SpiderOak

SpiderOak is an online backup tool for Windows, Mac and Linux users to back up, share, sync, access and store their data using an off-site server. SpiderOak allows the user to backup any given folder of his/her computer. SpiderOak uses encrypted cloud storage and client-side encryption key creation, so even employees of SpiderOak cannot access users' information (this is the 'zero-knowledge' data encryption). However, that can't be assured due to its client's closed source nature.

SpiderOak distinguishes itself from competition in provision of encryption, in provision for syncing files and folders across multiple devices, and in automatic de-duplication of data. To achieve this, SpiderOak uses a layered approach to encryption, using a combination of 2048 bit RSA and 256-bit AES.

SpiderOak offers two account types, a free 2 GB version and a paid subscription for capacity above the free account limit. Some components of SpiderOak are open source, and the company has announced their intent for the client to be fully open source in the future.

SpiderOak won editorial awards and also was made an Editor's Choice by Computer Shopper magazine in May 2009.

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