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Comparison of online backup services

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This is a comparison of online backup services.

Comparison

Provider Win.1 Linux1 Mac1 Android1 BlackBerry1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14 Green Hosting ITAR Compliant
Acronis Yes No No No No Yes No 250 Gb No Yes No No Yes USA, Europe No No limit Yes
AltDrive Yes Yes Yes Yes Optional[1] Yes Yes No Yes USA No No limit Yes
ASUS WebStorage Yes Yes (only 32 bit) Yes Yes Yes No No Yes Yes No Yes Yes Yes Yes USA, ASIA 5 GB 500 MB Yes
Backblaze Yes No Yes Yes[2] Optional[2] Yes Yes No Yes Yes USA ? No limit Yes ?
Barracuda Backup Service Yes Yes Yes Yes[3] No No fee per computer No Yes Yes No Yes No Yes USA, APAC, Europe No ?
Bitcasa Yes[4] No (Existed, removed, will be rewritten) Yes (Only 64-bit) Yes Yes Yes Bitcasa cannot decrypt data, but uses convergent encryption rather than personal encryption15 [5] Yes Yes No Yes Yes No Yes Yes Yes Yes USA 10 GB[6] No limit[7] Yes
Box Yes No Yes Yes Yes Yes Yes[8] No[8] Yes Yes Partial Paid users only Yes USA 5 GB 250MB (Free) 2GB (Paid)
BullGuard Backup Yes No No Yes Yes Yes Yes[9] No Yes Yes Yes No Yes Yes Europe No ?
Carbonite Yes No Yes (Home only) Yes Yes Yes Yes for Windows only[10] Yes (Business only) Yes (Business only) Yes (Home only) No[11] Yes (Pro only) Yes Yes[12] USA No 4 GB Yes[13] No
Provider Win.1 Linux1 Mac1 Android1 BlackBerry1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14 Green Hosting
CloudMe Yes Yes Yes Yes Yes, via Storage Made Easy client Yes No, but 3rd party apps available No Yes Yes Yes Yes Yes Sweden 3 GB 150 MB (Free Accounts) No limit (Premium Accounts) No Limit No
Comodo Backup Yes No No Yes[14] No Yes No Yes (5) No No No No USA No
Copy (software) Yes Yes Yes Yes Yes No No Yes No Yes Yes No No Yes Yes Yes No Yes Template:No limit No No
Crashplan Yes Yes Yes Yes Yes Yes[15] Yes[15][failed verification] Optional Yes Yes Yes[16] Yes[15][Note 1] Optional No Yes[17] No Yes USA, Australia, Europe and Asia[18] No No Limit Yes[19] ?
Cyphertite Conformal Systems Yes Yes Yes Yes Yes Yes Template:Yes, Personal Template:Yes, Premium No No Template:Yes, Premium only Yes USA 8 GB Yes
Dell Datasafe Yes No No Yes No 10, 30, 50, 100 GB No No Yes 2 GB ?
Dolly Drive No No Yes Yes Yes[20] No Yes No Yes Yes Yes No Yes Yes No Yes USA, Europe No No limit Yes[21] ?
Diino Yes Yes Yes No[22] No Optional Yes Optional Yes Optional Yes Yes No No limit ?
Dropbox Yes Yes Yes Yes Yes Yes Yes No,[23] but 3rd party apps available[24] Yes Yes; third-party webdav service, 300 MB write limit apply No Yes Yes Yes USA 2 GB 300 MB (Web Interface) No limit (Desktop client) No No
Dropmysite Yes Yes Yes Yes No Yes Optional No Yes Yes Yes Yes Global 2 GB No limit ?
Druva Insync Yes Yes Yes Yes Yes Yes Yes No Yes Yes No Yes Yes Yes Yes Global No No limit Yes
Egnyte Yes Yes Yes Optional[25] Optional[25] Yes No Yes Yes Yes USA No No limit ?
Provider Win.1 Linux1 Mac1 Android1 BlackBerry1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14 Green Hosting
ElephantDrive Yes Yes[26] Yes Yes[27] Yes Yes[28] Yes No Yes Yes[29] Yes Yes[30] North America 2 GB Yes ?
EVault Yes Yes Yes Yes[citation needed] No No Yes Yes Yes No No Yes Yes USA Canada UK Ireland No No limit Yes Yes
Fabrik Ultimate Backup Yes No No Yes No[31] Yes Yes Yes No Yes No Yes USA 5 GB ?
FileRock Yes Yes Yes Yes Yes Yes No No Yes Yes Yes No Europe No No limit No
FilesAnywhere Yes Partial Yes Yes, via Storage Made Easy client Yes, via Storage Made Easy client Yes, via Storage Made Easy client Optional[32] No[33] Yes No Yes Yes Yes, WebAdvanced accounts and up. No Yes Yes Yes Yes USA 1 GB No limit Yes
F-Secure Yes No Yes Yes[34] No[34] Yes Yes Yes Yes Yes Europe, US, APAC, several ISP-specific locations No 8 GB No ?
GFI Software Yes No No Yes[35] No No (Planned Mid/Late 2012) Yes Yes Yes Yes Yes Bitcasa cannot decrypt data, but uses convergent encryption rather than personal encryption15 [5] Yes Yes USA
Google Drive Yes No, but support will come[36]. Or several 3rd party clients available. Yes Yes Yes, via several 3rd party clients Yes No[37] No Yes Yes No Yes Yes Yes Worldwide 5 GB 10 GB[38] Partial: 30%[39]
Handy Backup Yes Yes No Yes Yes Yes Yes Yes Yes Yes No Yes Yes No Yes USA, CA No No limit Yes Yes
Humyo (now SafeSync) Yes Partial Yes Yes, via Storage Made Easy client Yes, via Storage Made Easy client Yes, via Storage Made Easy client No Yes Yes Yes Yes United Kingdom
IASO Backup Yes Yes Yes Yes[40] Yes[40] Yes Yes Yes Yes No No No No Yes Worldwide No No limit Yes Yes
Provider Win.1 Linux1 Mac1 Android1 BlackBerry1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14 Green Hosting
Infinit Yes Yes Yes Yes[41] Optional[41] No Yes No Yes Yes Yes Yes Yes No limit Yes Yes
iCloud Yes No Yes Yes, via Storage Made Easy client Yes, via Storage Made Easy client Yes Yes No ? ? ? ? ? ? unknown ?
IDrive Yes No Yes Yes[42] Yes,[42] but does NOT encrypt file-names Yes Yes Yes Yes Yes Yes USA 5 GB Yes
Jungle Disk Yes Yes Yes No Yes[43] Yes[43] Yes Yes Yes USA, Europe No 5 GB
Kaseya Yes No Yes Yes[citation needed] Yes Yes Yes Europe, USA, Asia No limit Yes Yes
KeepVault Yes No No Yes[44] Yes[45] Yes No Yes Yes USA 20 GB
Livedrive Yes No Yes Yes Playbook only Yes Yes Yes Yes Online Backup only No Yes Yes No Yes Yes Yes Yes UK No Template:No limit Yes
Microsoft SkyDrive Yes No Yes Yes[46] Yes, via several 3rd party clients Yes No[47] No Yes No Yes[48] Yes 7 GB for new users, 25 GB for older users 2 GB
MediaFire Yes Yes Yes Yes No Yes Yes Yes Yes No Yes Yes No No No No Yes No USA 50 GB 200 MB No No
MEGA Yes Yes Yes No No No Yes Yes Yes No Yes Yes No No No No Yes No Europe 50 GB No limit No No
Memopal Yes Yes Yes Yes[49] No[50] Yes Yes Yes Yes Europe, USA, Asia 3 GB 5 GB
MiMedia Yes No No Yes[51] No Yes No Yes Yes Yes No No Yes No No  United States 7 GB 3 GB Yes
Mozy Yes No Yes Yes No Yes Yes[52] Optional[52] Yes No No No No Yes USA, Europe 2 GB No limit [53] Yes No
OwnDrive Yes Yes Yes Yes Yes Yes Yes Yes Yes 1 GB
SpiderOak Yes Yes Yes Yes Yes, HTML5 client in Q4 2012 Yes Yes[54] Yes[54] Yes No Yes Yes Yes No Yes Yes Yes 2 GB No limit Yes Yes[55]
Provider Win.1 Linux1 Mac1 Android1 BlackBerry1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14 Green Hosting
SugarSync Yes No Yes Yes Yes Yes Yes[56] No[57] Yes No No Yes Yes Yes (SugarSync account needed for folders) 5 GB 100MB (web) No limit (client app)[58]
Syncplicity Yes No Yes Yes[59] No[59] Yes Yes Yes USA 2 GB
Tarsnap Using Cygwin Yes Yes No No No Yes[60] No No Yes No No No
Ubuntu One Yes10 Yes Yes Yes Yes No[61] No Yes No Yes N/A (6) No Yes Yes Yes 5 GB 5 TB[62] No
Unitrends Vault2Cloud Yes Yes Yes Yes[63] No No Yes Yes Yes No Yes No Yes USA No
UpdateStar Online Backup Yes No No Yes[64] No[65] Yes[66] Yes Europe
usenet backup Yes Yes Yes manual manual: users need to encrypt the data themselves Yes Yes Yes Yes No No No No Yes Yes Worldwide Yes, Unlimited No limit Yes Yes
Windows Live Mesh Yes No Yes Yes, read-only via Storage Made Easy client Yes, read-only via Storage Made Easy client Yes, read-only via Storage Made Easy client Yes[67] No Yes Yes Yes 5 GB 40 GB[68]
Wuala Yes Yes Yes Yes No Yes Yes Yes[69] No No Yes Yes No Yes[70] Yes Yes Europe, data distributed in encrypted chunks 5 GB 100 GB[71] Yes: only w/LaCie NAS[72] Yes: 100%[69]
Yandex.Disk Yes Partial (WebDAV) Yes Yes Yes No[73] No Yes Yes No Yes Yes 10 GB 3 GB
Zmanda Cloud Backup Yes No No Optional[74] Optional[74] Yes Yes Yes USA, Europe, Singapore, Japan No limit Yes Yes
Provider Win.1 Linux1 Mac1 Android1 BlackBerry1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14 Green Hosting

Legend

  • ^1 Windows/Linux/Mac/iOS/Android/BlackBerry - Supported operating systems for thick client (native binary application), which provide background data transmission and setting services.
  • ^2 Personal Encryption - The user needs to manage their own encryption key or password. If they lose it, there is no way to access the data. The service provider cannot access the user's data even if required by the government.[75][76] Backup service providers often claim that no one can access the users data even though they themselves could if forced to do so, so entries claiming support of this feature should always have a supporting reference. If the backup service has a password recovery or reset mechanism that allows a user to access their data when they lose their password or key, that proves they do not have personal encryption.
  • ^3 Payment method
    • L - Pay per computer. Additional fee for storage over a threshold.
    • U - Pay per computer. Storage per computer is unlimited.
    • M - Pay per unit of storage, but unlimited computers may share that storage.
    • B - Bandwidth capping or limits are used on accounts.
  • ^4 Net drive - a network drive acts as a regular computer drive, but is hosted remotely on a file server. Some common protocols used (FTP, SMB, NAS,...)
  • ^5 P2P storage - data spread over many computers based on peer-to-peer net advantages.
  • ^6 Sync - Synchronization between computers, and/or mobile devices (PDA, MDA,...)
  • ^7 Public Internet file hosting -
  • ^8 Restore via physical media -
  • ^9 Server location - countries where physical servers are located. Where the data will be located.
  • ^10 Still in Beta version
  • ^11 Whether the desktop client (if available) can detect and upload changes without scanning all files.
  • ^12 Many backup services offer a limited free plan, often for personal use. Often it is possible to increase the free backup limit through coupons, referrals, or other means that are not included in this column. This column also does not include free trials that are only available for a limited period of time.
  • ^13 External hard drive support - Can refer to an alternate backup destination or whether the service can back up external drives.
  • ^14 Hybrid Online Backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a D2D2C (Disk to Disk to Cloud) appliance encrypts and transmits data to a service provider. Recent backups are retained locally, to speed data recovery operations.
  • ^15 Bitcasa encrypts each file with a key derived from that file, so a file can be decrypted only if you already have (or have had) the decrypted version. Therefore bitcasa cannot decrypt arbirary files, but they could e.g. remove a specific requested file or log which users access a specific requested file. There also is a learn-the-remaining-information attack possible.[77][78]

Comments

Acronis
Up to five PCs, always incremental backups, remote access from the web
AltDrive
Data de-duplication; block-level incremental; unlimited offering. Home (1–3 computers) or biz service (1–1000 computers). Client-side encryption.
ASUS WebStorage
Auto-upload on designated folder, auto-backup capabilities, cross-platform file access of upload and sharing - iOS, Android, Windows Marketplace, OS X, Ubuntu, Linux, Windows Store (Windows 8) also any compatible browser. 5 GB of free data. Upload limit for each file of 500 MB on free account. Daily file sharing limit of 500 MB on free account. Free account will only allow one computer to be able to back up.
Backblaze
Data de-duplication; block-level incremental
Barracuda Backup Service
Data de-duplication; real-time hybrid on-site/off-site data back-up
BullGuard Backup
5 PC/license, fast upload speeds, mobile access, encrypted transfer and storage, password-protected settings, free 24/7 support
Carbonite
Block-level incremental, Home or Pro editions. iPhone/ Blackberry/ Android App available to remotely access data from the online backup (For Pro: Users of the computer which are backed up, not available for the Administrator of the Pro). Can manually select files to upload that are larger than 4 GB.
Crashplan
Unlimited destinations. Data de-duplication; block-level incremental. Can run server-free, exchanging backup space with friends and family.
Datashield
High-level encryption, personalized encryption key, shared cloud drive, sync folder functionality
Dolly Drive
Cloud storage that is specifically designed for the Mac. Also allows users to store files exclusively in the cloud for seamless access on any computer or mobile device.
Diino
iPhone/Android app available.
Dropbox
Data de-duplication, delta sync, iPhone/Android/Blackberry app available.
Dropmysite
website backup, database backup, SFTP support, free up to 2 GB.
Druva inSync
Integrated Backup and File-sharing. HIPAA and ISAE3400 compliant
Egnyte
Delta sync, Google Docs sync, user and group management
ElephantDrive
Auto-transfer from defunct Xdrive.
Fabrik Ultimate
Backup Block-level incremental backups, Encryption: 128 bits standard, 448 bits optional, limited account of up to 3 GB is free. Acquired by Hitachi. According to their tech support, their offering is a branded version of Memopal.
FilesAnywhere
Mark Cuban acquired minority interest in 2006. Android, iOS, BlackBerry apps available. Dedicated server options available. CoolBackup software used for backup and sync.
F-Secure
[Steek acquired by F-Secure July 2009]
Humyo
Humyo was acquired by Trend Micro and will become part of Trend Micro SafeSync. Humyo no longer accepts new clients.
IASO Backup
Advanced[clarification needed] data reduction technology. Data de-duplication mechanism. High level[clarification needed] of scalability and cost effectiveness.
IDrive
Proprietary license download client. Automatic Selection. Continuous Data Protection. "Virtual drive" explorer.
Jungle Disk
Proprietary license download client sample code.
KeepVault
Real-time hybrid on-site and offsite data backup
Memopal
Cross-user de-duplication, delta sync
MiMedia
Initial seed via a MiMedia-owned external hard drive available (no extra cost, shipping included).
Mozy
Data de-duplication; block-level incremental. "Mozy Data Shuttle" physical seeding service available for extra fee.
SpiderOak
Data de-duplication."Zero Knowledge" encryption.
StoreGrid Cloud
Byte-level incremental backup, local backup, Disk Image backup - BMR and physical seeding.
Syncplicity
Google Docs sync, Central Management with Business Console
TaniBackup (Cheap Backup)
Up to 10 TB per standard package. Extensible to over 300 TB per single account. Access via SMB/CIFS or SSH (including sftp, scp, rsync and so on). 100 GB for $2 per month.
Tarsnap
Client source available; data de-duplication; block-level incremental.
Ubuntu One
GPL client
Unitrends Vault2Cloud
Data de-duplication; hybrid on- and off-premise data backup; physical seeding
UpdateStar Online Backup
Data de-duplication; block-level incremental
Usenet backup
Is the method of storing backup data on the usenet.[79]
Windows Live Mesh
replaces windows live sync and windows live folder
Wuala
Client-side encryption, Wuala does not have access to the data. Hybrid solution only works with LaCie NAS.
Zetta Enterprise-grade Online Backup
Supports Linux, Mac OS, and Windows, high speed WAN optimization, SAS 70 certified data centers
Zmanda Cloud Backup
Available in German and Japanese languages, supports MS SQL Server, MS Exchange, SharePoint, MySQL Database, System State, Oracle

Versioning

Any changes can be undone, and files can be undeleted.

Acronis
Supports detailed history of changes to files with browsing by date or version number.
AltDrive
Old versions of files are kept for 30 days. Biz customers choose their retention policy of 30 days to 7 years to forever.
Backblaze
Old versions of files are kept for 30 days.
Carbonite
Keeps old versions for up to three months. It keeps one version for each day of the past week, one version for each of the previous three weeks, and one version for each of the previous two months that the file has been backed up.
Copy
Possibly, it is mentioned on their Google App, but not directly on their website [80]
Crashplan
Options: All, or staged (daily, then weekly, etc.).
Dolly Drive
Yes. Keeps unlimited versions of files.
Dropbox
No version history kept in free account as of 2012, but discrete files deleted can be undeleted.
Dropmysite
Provides incremental backups with the ability to download every snapshot.
ElephantDrive
Any number of versions can be kept for any amount of time.
IASO Backup
All versions of files can be kept for different periods of time, starting from 1 month to 1 year or more.
Mozy
Old version of files are kept for 30 days. Pro 60 days, Enterprise 90 days.[81]
PowerFolder
Five versions are kept online. In the client it is configurable how many versions to store locally.
SOS Online Backup
All versions are kept. Only the largest counts towards the storage limit.
SpiderOak
All versions are kept. All files can be undeleted.
SugarSync
Five versions are kept. Only the most recent version of each of existing files as well as deleted files count towards the storage limit.
Wuala
Ten versions are kept. Only the most recent counts towards the storage limit.
Zetta Enterprise-grade Online Backup
All versions are kept. All files can be undeleted.

See also

Defunct services

Notes

  1. ^ Netdrives are not currently supported for Windows

References

  1. ^ AltDrive Blog » A note on AltDrive Security…
  2. ^ a b Backblaze Blog » How to make strong encryption easy to use
  3. ^ "Barracuda Backup Service - Integrated Local and Offsite Backup". Barracudanetworks.com. 2009-02-09. Retrieved 2012-10-29.
  4. ^ Bitcasa
  5. ^ a b Techcrunch interview with Bitcasa CEO
  6. ^ During the beta program you can store as much data in Bitcasa as you want. Absolutely no limits.
  7. ^ Is there a maximum file size for a single file allowed for being stored in the cloud? "Infinity :)"
  8. ^ a b "Box for Enterprise IT: Security Leadership in The Cloud". Box.com. Retrieved 2012-10-29.
  9. ^ "Online Data Backup, Backup Software, Remote Backup – BullGuard". Bullguard.com. 2011-02-15. Retrieved 2012-10-29.
  10. ^ Managing Your Private Encryption Key
  11. ^ Bandwidth Allocation, retrieved 2012-01-25
  12. ^ HomePremier and Business plans only: http://www.carbonite.com/en/home/online-backup-pricing
  13. ^ HomePlus, HomePremier and Business plans only: http://www.carbonite.com/en/home/online-backup-pricing
  14. ^ "Backup Software, Best Windows Backup Software Features - Comodo Backup". Backup.comodo.com. Retrieved 2012-10-29.
  15. ^ a b c "Frequently Asked Questions". CrashPlan PRO. Codefortytwo Software. March 7, 2013. Retrieved 13 March 2013.
  16. ^ http://support.crashplan.com/doku.php/faq/mozy#are_crashplan_unlimited_plans_really_unlimited , throttled by setting by default http://support.crashplan.com/doku.php/reference_guide/settings#network
  17. ^ "reference:real_time_backups [CrashPlan Support Site]". Support.crashplan.com. Retrieved 2012-10-29.
  18. ^ About Us, Code 42 Software
  19. ^ as a local backup option : http://support.crashplan.com/doku.php/getting_started/attached_drive_shared_folder and to backup : http://support.crashplan.com/doku.php/faq/mozy#can_i_back_up_my_external_hard_drive_thumb_drive
  20. ^ "F.A.Q. about Apple Time Machine in the cloud". Dolly Drive. Retrieved 2012-10-29.
  21. ^ full external and network-attached storage support
  22. ^ "What is Diino?". Diino. Retrieved 2012-10-29.
  23. ^ Dropbox Lied to Users About Data Security, Complaint to FTC Alleges | Threat Level | Wired.com
  24. ^ Encrypt Files On The Client-Side Before Uploading To Dropbox | DiggFreeware.com
  25. ^ a b Security & Privacy - Online Storage Protection and Secure File Sharing for Egnyte Cloud File Server
  26. ^ [1]
  27. ^ [2]
  28. ^ What is a Personal Key in the encryption settings? : Knowledge Base and Support Center
  29. ^ [http://support.elephantdrive.com/entries/21691218-Everywhere-folder}
  30. ^ [3]
  31. ^ HGST. "Support | Touro Cloud Backup". Hitachibackup.com. Retrieved 2012-10-29.
  32. ^ "Security : Support Center". Support.filesanywhere.com. 2011-05-20. Retrieved 2012-10-29.
  33. ^ Privacy Policy : Support Center
  34. ^ a b F-Secure Online Backup FAQ
  35. ^ GFI Managed Online Backup
  36. ^ Google Drive Is Coming to Linux
  37. ^ Google's privacy policy allows it to analyse user data to display matching adds, so it's probably not storing the data encrypted
  38. ^ Google Docs size limits "Files that you upload but don’t convert to Google Docs format can be up to 10 GB each."
  39. ^ Google Green - Renewable energy
  40. ^ a b "Secure IP Backup | Best Backup software | IASO Backup Technology". Iaso.com. Retrieved 2012-10-29.
  41. ^ a b "Infinit". Infinit.io. Retrieved 2012-10-29.
  42. ^ a b "Frequently Asked Questions on IDrive online backup". Idrive.com. Retrieved 2012-10-29.
  43. ^ a b Encryption and Account Keys : Jungle Disk Support
  44. ^ Online Backups, Hard Drive Backup, Windows Backup | KeepVault
  45. ^ http://forums.proxure.com/viewtopic.php?t=2141, http://forums.proxure.com/viewtopic.php?t=1389
  46. ^ Microsoft SkyDrive for Android app is now available
  47. ^ Skydrive secure storage features, Microsoft monitoring, censoring SkyDrive uploads? | WMPoweruser
  48. ^ "Skydrive von Microsoft als Netzlaufwerk einbinden (1.1.2012)". Cybernetz.net. Retrieved 2012-10-29.
  49. ^ Security – Memopal
  50. ^ http://www.memopal.com/en/supportfaq/i-have-lost-my-password—can-i-retrieve-it.htm
  51. ^ "How secure is my data?". Support.mimedia.com. Retrieved 2012-10-29.
  52. ^ a b Mozy Help : Understanding MozyHome Encryption
  53. ^ "Limit on file size? - Mozy Community". Community.mozy.com. Retrieved 2012-10-29.
  54. ^ a b Does SpiderOak use encryption when storing and transferring data?
  55. ^ https://spideroak.com/manual/preferences
  56. ^ Data and File Security - Secure Online Backup – SugarSync
  57. ^ SugarSync password recovery
  58. ^ What is max file size for upload? "There is no maximum file size limit for adding the file through the SugarSync Manager application. However, there is a 100MB limit for files being uploaded through the SugarSync website."
  59. ^ a b Syncplicity User Manual / About Syncplicity
  60. ^ https://www.tarsnap.com/crypto.html
  61. ^ bug #375289: data encryption (client-side as well as server-side)
  62. ^ https://wiki.ubuntu.com/UbuntuOne/FAQ/WhatIsTheLargestSizeFileICanSync
  63. ^ "Encryption for your Backups | Unitrends Incrypt". Unitrends.com. 2012-05-02. Retrieved 2012-10-29.
  64. ^ UpdateStar - Simplify your software life
  65. ^ Even though UpdateStar allows you to manage your own private key, they also have an Encryption Key Recovery Service. How that exactly works is not clear from the website.
  66. ^ Server Edition
  67. ^ Skydrive secure storage features
  68. ^ Windows Live Sync beta blends the best of Sync and Mesh "We also increased key sync limits, with support for more sync folders, many more files in each folder, and the ability to synchronize files as large as 40GB now."
  69. ^ a b Wuala - Technology - Secure Cloud Storage - Backup. Sync. Share. Access Everywhere.
  70. ^ "Wuala Blog - Hottingen: New Style & Full-Feature Set". Wuala.com. 2011-05-23. Retrieved 2012-10-29.
  71. ^ "Wuala Blog - Hirslanden - more storage for everyone!". Wuala.com. 2011-10-04. Retrieved 2012-10-29.
  72. ^ "Wuala Hybrid Cloud - Now Available!".
  73. ^ Questions and Answers
  74. ^ a b http://www.zmanda.com/zcb-faq.html#500
  75. ^ Internet security: Keys to the cloud castle | The Economist
  76. ^ Why I Use Jungle Disk and Tarsnap — Evil Routers
  77. ^ http://security.stackexchange.com/questions/7142/online-backup-how-could-encryption-and-de-duplication-be-compatible
  78. ^ The Learn The Remaining Information Attack
  79. ^ "usenet backup". Wikihow.com. Retrieved 2012-01-26.
  80. ^ "Copy App on Google Play". Barracuda Networks. Retrieved May 28, 2013.
  81. ^ "Recovering Older Versions of Files". Mozy. Retrieved May 21, 2013.
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