---
id: delta-drive.what-encryption-does-delta-trust-use
url: https://storagestudio.us/faq/delta-drive/what-encryption-does-delta-trust-use
category: "Delta Drive, Delta Trust & My Drive"
subcategory: "Security, sign-in and privacy"
question: "What encryption does Delta Trust use?"
alt_questions:
  - "How is Delta Trust encrypted?"
  - "Delta Trust encryption algorithm"
  - "Is Delta Drive encrypted?"
  - "How secure is the Storage Studio vault technically?"
  - "What cipher does Delta Trust use?"
short_answer: "We don't publish the technical details, but the promise is: backups are encrypted on your Mac, only your recovery kit opens them, and for the protected period nobody can delete or overwrite them — including us."
tags: ["encryption", "security", "delta trust"]
related: ["https://storagestudio.us/faq/delta-drive/can-storage-studio-read-my-delta-trust-backups", "https://storagestudio.us/faq/delta-drive/what-is-the-delta-trust-recovery-kit", "https://storagestudio.us/faq/delta-drive/does-delta-trust-protect-my-backups-from-ransomware"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# What encryption does Delta Trust use?

We don't publish the technical details of how Delta Trust's encryption and locking work, but here's what it means for you:

- Your backups are encrypted on your Mac before they're stored, and only your **recovery kit** opens them.
- We can't look up or reset that kit, so we can't read your backups.
- For the protected period, nothing on your Mac — and nobody at Storage Studio — can delete or overwrite what's been backed up.
- Every time we touch your vault's account, it shows up in your own activity log.

See [can Storage Studio read my backups?](https://storagestudio.us/faq/delta-drive/can-storage-studio-read-my-delta-trust-backups) and [privacy & safety](https://storagestudio.us/faq/privacy-safety/).