---
url: /relyai-acellemail/features/file-integrity.md
description: >-
  Advisory HMAC-SHA256 tamper-detection on the Integrity & Updates tab — see
  whether your files match a signed baseline, with Auto-Sync that self-heals
  after a legitimate upgrade. Never blocks the plugin.
---

# File integrity

File integrity monitors your installation against unauthorized or incomplete file modifications:

* **Signed baseline:** Maintains an HMAC-SHA256 checksum baseline of all RelyAI plugin files.
* **Change detection:** Identifies unexpected modifications, incomplete uploads, or file corruption.
* **Advisory visibility:** View current status under **RelyAI → Settings → Integrity & Updates**.

![The integrity status on the Integrity & Updates tab](/relyai-acellemail/img/relyai-file-integrity-status.png)
*RelyAI → Settings → Integrity & Updates*

## What the statuses mean

| Status | What it's telling you |
| --- | --- |
| **Everything in sync** | Files match the signed baseline — nothing to do |
| **All files verified** | HMAC signatures are valid |
| **Sync required** | Something differs from the baseline; the list shows what changed |
| **n files tracked** | How many files are covered, plus when the last snapshot was taken |
| **No baseline yet** | No checksum baseline has been recorded so far |

## Auto-Sync on Admin Page Load

Enable **Auto-Sync on Admin Page Load** to automatically refresh the baseline upon admin access:

* **Self-healing baseline:** Establishes a fresh checksum baseline immediately following legitimate upgrades.
* **Eliminates false alerts:** Clears pending "Sync required" flags after planned file changes.

## Operational characteristics

* **Admin-only visibility:** Integrity metrics and controls appear exclusively in the administrator interface.
* **Non-blocking operation:** Mismatches generate advisory warnings without locking features or stopping execution.
* **Advisory signal:** Acts as an operational indicator rather than an immutable cryptographic lock.

## Related pages

* [Updating RelyAI](/relyai-acellemail/updating) — updates verify and re-baseline files as they apply
* [Backup and restore](/relyai-acellemail/backup-and-restore) — the snapshot taken before every update