diff --git a/backend/src/database/schemas/users.ts b/backend/src/database/schemas/users.ts
index 2b7d9b5..5a44a4f 100644
--- a/backend/src/database/schemas/users.ts
+++ b/backend/src/database/schemas/users.ts
@@ -1,21 +1,45 @@
-import {pgTable, varchar, timestamp, uuid, pgEnum, index} from 'drizzle-orm/pg-core';
+import {pgTable, varchar, timestamp, uuid, pgEnum, index, boolean, customType} from 'drizzle-orm/pg-core';
+
+// Type personnalisé pour les données chiffrées PGP (stockées en bytea dans Postgres)
+const pgpEncrypted = customType<{ data: string; driverData: string }>({
+  dataType() {
+    return 'bytea';
+  },
+});
 
 export const userStatus = pgEnum("user_status", ["active", "verification", "suspended", "pending", "deleted"])
 
 export const users = pgTable('users', {
-  status: userStatus('status').default('pending').notNull(),
   uuid: uuid().primaryKey().defaultRandom(),
-  email: varchar('email', { length: 128 }).notNull().unique(),
-  username: varchar('username', { length: 32 }).notNull().unique(),
+  status: userStatus('status').default('pending').notNull(),
+  
+  // Données Personnelles (PII) - Chiffrées nativement
+  email: pgpEncrypted('email').notNull(),
+  emailHash: varchar('email_hash', { length: 64 }).notNull().unique(), // Indexé pour recherche rapide et unicité
   displayName: varchar('display_name', { length: 32 }),
+  
+  username: varchar('username', { length: 32 }).notNull().unique(),
   passwordHash: varchar('password_hash', { length: 72 }).notNull(),
+  
+  // Sécurité
+  twoFactorSecret: pgpEncrypted('two_factor_secret'),
+  isTwoFactorEnabled: boolean('is_two_factor_enabled').notNull().default(false),
+  
+  // RGPD & Conformité
+  termsVersion: varchar('terms_version', { length: 16 }), // Version des CGU acceptées
+  privacyVersion: varchar('privacy_version', { length: 16 }), // Version de la Privacy Policy acceptée
+  gdprAcceptedAt: timestamp('gdpr_accepted_at', { withTimezone: true }),
+  
+  // Dates de cycle de vie (Standards Entreprise)
+  lastLoginAt: timestamp('last_login_at', { withTimezone: true }),
   createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
   updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
-  gdprAcceptation: timestamp('gdpr_acceptation', { withTimezone: true }),
+  deletedAt: timestamp('deleted_at', { withTimezone: true }), // Soft delete (Droit à l'oubli)
 }, (table) => ({
   uuidIdx: index('users_uuid_idx').on(table.uuid),
-  emailIdx: index('users_email_idx').on(table.email),
+  emailHashIdx: index('users_email_hash_idx').on(table.emailHash),
   usernameIdx: index('users_username_idx').on(table.username),
+  statusIdx: index('users_status_idx').on(table.status),
 }));
 
 export type UserInDb = typeof users.$inferSelect;