Sentinelo

Sentinelo is a lightweight agent that connects a WordPress site to the Sentinelo maintenance platform, used by agencies and freelancers to look after a fleet of client sites from one place — under their own brand.

This plugin requires a Sentinelo account. On its own it does nothing: it waits for an API key, then answers authenticated requests from the platform.

Once connected, the platform can:

• Back up the site (database and files), encrypted on the site before upload, to cloud object storage. Large sites are archived, encrypted and uploaded in resumable steps, so backups complete even on shared hosting with short PHP time limits. Daily backups are differential against the last full one; a restore only ever needs two archives.

• Restore a backup, with a safety backup taken first.

• Scan security: 19 checks (file permissions, exposed files, debug mode, admin accounts, outdated components, suspicious file signatures, WordPress core integrity against the official checksums…), scored out of 100.

• Apply updates to plugins, themes, translations and core through the standard WordPress upgrader, with a per-component snapshot taken before each update and an automatic rollback if the update fails.

• Harden the site on request (hide the WordPress version, disable the file editor, XML-RPC or user enumeration, block PHP execution in uploads) — every hardening measure is reversible and is removed when the plugin is deactivated.

• Report health, versions and pending updates through a heartbeat, used for uptime alerts and the monthly client report.

Nothing is added to the front end of your site. The plugin adds a single settings page under Settings › Sentinelo.

Security model

• Every request from the platform is authenticated with a per-site API key (compared in constant time) and can be restricted to the platform’s IP address.

• Outgoing webhooks are signed (HMAC-SHA256) with a per-site secret.

• The API key and the storage credentials are stored encrypted in the database.

• Backups are encrypted on your server before they leave it (authenticated encryption).

External services

This plugin is a connector to a third-party service, the Sentinelo platform, and relies on the external services listed below. It only contacts them after you have entered a Sentinelo API key in Settings › Sentinelo, which is how you consent to the connection. Without a key, it makes no outgoing request.

Requests the plugin makes to your own site (security checks such as security headers, exposed files or directory listing, and the SEO audit, which reads your own pages) stay on your site and are not listed here.

Sentinelo platform (backend.sentinelo.fr)

The Sentinelo platform is the service this plugin connects to; it is operated by Sentinelo, the author of this plugin. fr only.

• What is sent and when:

• When you save the API key: the key and your site URL, to verify the connection ( /api/sites/verify ).

• Every few minutes (heartbeat): the site URL, the WordPress, PHP and plugin versions.

• Every hour, and whenever a backup, scan, update or restore completes: the list of installed plugins and themes with their versions and update status, security scan results, backup and restore status, the database size, and the date of the last login of each administrator account. No passwords, no post or page content, no visitor data.

• On request from the platform: the plugin’s own logs, and a connectivity check that measures how long a request to https://backend.sentinelo.fr/api/health takes (no data is sent).

• When the plugin is deleted: one signed notice telling the platform the site was disconnected.

• Terms of service: https://sentinelo.fr/cgv

• Privacy policy: https://sentinelo.fr/politique-confidentialite

• Sub-processors: https://sentinelo.fr/sous-traitants

Cloud object storage: Backblaze B2, Cloudflare R2, Amazon S3 or another S3-compatible service

Backup archives are uploaded to the S3-compatible object storage configured for your site in the Sentinelo platform. com ). com ), or another S3-compatible endpoint you or your agency chose.

• What is sent: backup archives of your database and files, encrypted on your server before upload (the storage provider cannot read them), and the requests needed to list, download and delete those archives.

• When: when a backup runs (on the schedule set in the platform, or on demand), when old backups are pruned by the retention policy, and when a backup is downloaded for a restore. On request from the platform, a connectivity check also measures how long a request to https://s3.eu-central-003.backblazeb2.com/ takes (no data is sent).

• Backblaze — terms: https://www.backblaze.com/company/policy/terms-of-service — privacy: https://www.backblaze.com/company/policy/privacy

• Cloudflare R2 — terms: https://www.cloudflare.com/terms/ — privacy: https://www.cloudflare.com/privacypolicy/

• Amazon S3 — terms: https://aws.amazon.com/service-terms/ — privacy: https://aws.amazon.com/privacy/

WordPress.org

• The core integrity check downloads the official checksums for your WordPress version from https://api.wordpress.org/core/checksums/1.0/, and restoring a modified core file downloads that file from https://core.svn.wordpress.org/. Only your WordPress version and locale are sent.

• When listing plugins, the plugin reads public information (last update date) about installed plugins from the WordPress.org plugin directory, through the standard WordPress plugins_api() function.

• On request from the platform, the connectivity check also times one request to https://api.wordpress.org/core/version-check/1.7/, to tell “this site is slow to reach everything” apart from “this site is slow to reach Sentinelo”. No data is sent.

• WordPress.org privacy policy: https://wordpress.org/about/privacy/

WPScan (optional, off by default)

com/api/v3/plugins/ for known vulnerabilities of installed plugins when the platform lists the plugins (results are cached). Only plugin slugs and the token are sent.

• WPScan terms: https://wpscan.com/terms

• WPScan privacy policy (Automattic): https://automattic.com/privacy/