Security

Un dump de base de données ne révèle rien.

Les données personnelles de chaque utilisateur sont chiffrées au repos avec des clés propres à chaque tenant, qui ne transitent jamais par la base de données. Un identifiant de stockage compromis ou une sauvegarde volée ne livrent que du texte chiffré : ni e-mails, ni noms, ni numéros de téléphone.

  • OAuth 2.0
  • OIDC
  • SAML 2.0
  • SCIM 2.0
  • PKCE (RFC 7636)
  • PAR (RFC 9126)
  • WebAuthn / FIDO2
  • TOTP
  • JWT / JWKS
  • AES-256-GCM
  • HMAC-SHA256
  • TLS 1.2+ / 1.3
  • RBAC
  • DDoS / WAF
  • SOC 2 CC6 / CC7
  • GDPR erasure
  • 01Stolen database or backup

    Ciphertext. Per-tenant keys live in Vault, never in the database.

  • 02Leaked storage credential

    Nothing usable. Shared keys are off; access is Entra identity + RBAC only.

  • 03Compromised app pod

    No lateral movement, no cloud metadata. Egress is default-deny and every decrypt is logged.

  • 04Internet scan of the admin plane

    No route. The control plane is not on the public internet.

  • 05Traffic interception

    TLS end to end, including pod-to-Vault inside the cluster.

Layers, not a wall

Each boundary an attacker crosses only leads to the next one. At the center, the data itself is ciphertext.

Public internetCloudflare: DDoS, WAF, origin lockCluster: TLS ingress, default-deny egress and ingressApp: per-tenant AES-256-GCMData at rest: ciphertextKeys isolated in Vault, never in the database

Encryption & tenant isolation

Personal data is encrypted at rest with keys the database never sees, and it stays searchable.

Keys outside the data
Values encrypt and decrypt through HashiCorp Vault Transit. The application never holds key material and the database never sees a key.
A key per tenant
Every tenant gets its own AES-256-GCM key. Encryption is randomized, so identical inputs never produce identical ciphertext.
Searchable without plaintext
Keyed-HMAC blind indexes power login-by-email, search-by-name and domain lookups over data that is never stored in the clear. The index keys are HMACs too, so a dump of the index tables reveals nothing.
Crypto-shredding
Deleting a tenant destroys its key, making all of that tenant's data permanently unrecoverable. That is GDPR Article 17 erasure by cryptography, with no row-by-row deletion.
What is protected
Emails, names, phone numbers, company names and custom attributes are encrypted at rest. Passwords were never stored reversibly. Opaque IDs, roles and timestamps stay clear so the system stays operable.

Key management

The keystore is treated as the crown jewels, because it is.

Encrypted in the cluster
Vault's listener runs TLS with a private CA, so Transit traffic is encrypted even on the pod network.
KMS auto-unseal
Vault auto-unseals against an Azure Key Vault key. No unseal keys sit on disk or in a runbook.
HA and backed up
A three-node Raft cluster with a daily snapshot to an isolated, geo-redundant (GRS) account, roughly a 24h RPO. Snapshots are barrier-encrypted.
No root in the cluster
Apps run on scoped, least-privilege per-host tokens. The root token lives in a break-glass vault, not the workload.
Every operation audited
A Vault audit device records every cryptographic operation by token and key. Use of a token outside its policy raises an alert.

Network & zero-trust

Every hop is deny-by-default. A workload can reach only what it is declared to need.

Default-deny both ways
NetworkPolicies deny pod-to-pod ingress and egress by default. A compromised pod cannot move laterally, reach cloud metadata, or exfiltrate freely.
Edge and origin lock
The public surface sits behind Cloudflare for DDoS and WAF, and the origin only accepts traffic from the edge. Direct-to-origin is blocked.
Private data plane
Storage, Key Vault and the container registry are reached over private endpoints, and the Kubernetes API is private.
Admin off the internet
The platform control plane is reachable only over the private network, never the public internet.

Identity & access

The standards you already require, plus phishing-resistant options for the accounts that matter.

OAuth2 / OIDC, done right
Authorization Code with PKCE (RFC 7636) and Pushed Authorization Requests (RFC 9126), so authorization parameters never ride the browser. Tokens are JWTs verified against rotating JWKS.
Enterprise federation
SAML 2.0 sign-in and SCIM 2.0 provisioning (RFC 7643/7644), including group-to-role mapping at token issuance.
MFA and passkeys
TOTP, WebAuthn / FIDO2 passkeys and fully passwordless sign-in, with refresh-token rotation on every use.
Hardened admin
Platform admin is SSO-only through Entra SAML under enforced MFA. There is no admin password to phish.

Operations & assurance

Controls you can audit, not just claims you can read.

Audit log with alerting
Security-relevant events are logged and alerted on, aligned to SOC 2 CC7 monitoring.
Images scanned in CI
Every container image is scanned for CVEs, and a High or Critical (CVSS) finding blocks the release.
Rotation and patching
Static secrets rotate on a documented cadence and dependency security updates land automatically.
Hardened infrastructure state
Infrastructure state is geo-redundant, versioned, soft-deletable, private, and reachable by identity only, with no shared keys.

La menace contre laquelle nous nous protégeons

Chaque fournisseur revendique le « chiffrement au repos ». Presque toujours, cela signifie le chiffrement du disque, que le cloud déchiffre automatiquement pour tout ce qui est autorisé à lire le stockage. Une clé de stockage divulguée ou une sauvegarde volée laisse donc toujours fuir du texte en clair. Pas le nôtre. Les clés résident dans Vault, jamais dans la base de données, de sorte que les données et la clé qui les ouvre ne se trouvent jamais au même endroit. Copiez les tables et vous n'obtenez que du texte chiffré, inutile sans une seconde intrusion dans Vault.

Une précision honnête sur ce « rien » : il s'agit des données personnelles de vos utilisateurs. La piste d'audit et les journaux de diagnostic à durée de vie courte enregistrent toujours ce qui s'est passé et quand, pour que le système reste exploitable et redevable. Chaque identité qui y figure est un pseudonyme ou un jeton masqué, jamais un nom, un e-mail ou une adresse IP en clair.

Signaler une vulnérabilité

Vous avez trouvé quelque chose ? Écrivez à [email protected]. Notre contact lisible par machine est publié à l'adresse /.well-known/security.txt.