Cloud backup with an independent audit (2026): 4 services

A security claim is only a claim until an independent auditor checks it. These online backup services from our ranking publish a SOC 2 Type 2 report or an ISO/IEC 27001 certificate; the official compliance page of each one is linked as a source.

Best Cloud Backup Services 2026: Independent Ranking

  1. 1

    Backblaze Computer Backup

    74/100
    Price per year, 1 computer (plan of 1 TB+)
    $99.00
    Storage on that plan, GB
    Unlimited
    Private encryption key
    Yes
    • You can encrypt the backup with your own key: the company cannot read it
    • Deleted files stay recoverable for a long time
    • Unlimited or very large backup storage
    • Security checked by an independent audit
  2. 2

    IDrive Online Backup

    74/100
    Price per year, 1 computer (plan of 1 TB+)
    $119.88
    Storage on that plan, GB
    5000
    Private encryption key
    Yes
    • You can encrypt the backup with your own key: the company cannot read it
    • Deleted files stay recoverable for a long time
    • Unlimited or very large backup storage
    • Security checked by an independent audit
  3. 4

    CrashPlan

    50/100
    Price per year, 1 computer (plan of 1 TB+)
    $88.00
    Storage on that plan, GB
    50
    Private encryption key
    Yes
    • You can encrypt the backup with your own key: the company cannot read it
    • Deleted files stay recoverable for a long time
    • Security checked by an independent audit
    • Account can be protected with a second factor
  4. 5

    Acronis True Image

    48/100
    Price per year, 1 computer (plan of 1 TB+)
    $139.64
    Storage on that plan, GB
    1000
    Private encryption key
    Yes
    • You can encrypt the backup with your own key: the company cannot read it
    • Security checked by an independent audit
    • Phones can be backed up to the same account
    • Long free trial