diff --git a/ui/src/components/Layout.tsx b/ui/src/components/Layout.tsx
index 44156f9..a9235df 100644
--- a/ui/src/components/Layout.tsx
+++ b/ui/src/components/Layout.tsx
@@ -4,7 +4,7 @@ import {
   Sidebar,
   TopBar,
 } from '@cameleer/design-system';
-import { LayoutDashboard, ShieldCheck, Users, Settings, Shield, Building, ScrollText, Mail, BarChart3, Server, ExternalLink, Key } from 'lucide-react';
+import { LayoutDashboard, ShieldCheck, Users, Settings, Shield, Building, ScrollText, Mail, BarChart3, Server, ExternalLink, Key, Lock } from 'lucide-react';
 import { useQuery } from '@tanstack/react-query';
 import { useAuth } from '../auth/useAuth';
 import { useScopes } from '../auth/useScopes';
@@ -148,6 +148,15 @@ export function Layout() {
             <Key size={12} style={{ marginRight: 6, verticalAlign: -1 }} />
             License Tools
           </div>
+          <div
+            style={{ padding: '6px 12px 6px 36px', fontSize: 13, cursor: 'pointer',
+              fontWeight: isActive(location, '/vendor/auth-policy') ? 600 : 400,
+              color: isActive(location, '/vendor/auth-policy') ? 'var(--amber)' : 'var(--text-muted)' }}
+            onClick={() => navigate('/vendor/auth-policy')}
+          >
+            <Lock size={12} style={{ marginRight: 6, verticalAlign: -1 }} />
+            Auth Policy
+          </div>
           <div
             style={{ padding: '6px 12px 6px 36px', fontSize: 13, cursor: 'pointer', color: 'var(--text-muted)' }}
             onClick={() => window.open(`${window.location.protocol}//${window.location.hostname}:3002`, '_blank', 'noopener')}
diff --git a/ui/src/pages/vendor/AuthPolicyPage.module.css b/ui/src/pages/vendor/AuthPolicyPage.module.css
new file mode 100644
index 0000000..15a04f3
--- /dev/null
+++ b/ui/src/pages/vendor/AuthPolicyPage.module.css
@@ -0,0 +1,25 @@
+.subtitle {
+  color: var(--text-muted);
+  margin-bottom: 0;
+  margin-top: 8px;
+}
+
+.description {
+  color: var(--text-muted);
+  font-size: 0.875rem;
+  margin-top: 0;
+  margin-bottom: 16px;
+}
+
+.controlRow {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  margin-bottom: 12px;
+  font-size: 0.875rem;
+}
+
+.buttonGroup {
+  display: flex;
+  gap: 8px;
+}
diff --git a/ui/src/pages/vendor/AuthPolicyPage.tsx b/ui/src/pages/vendor/AuthPolicyPage.tsx
new file mode 100644
index 0000000..58ff11c
--- /dev/null
+++ b/ui/src/pages/vendor/AuthPolicyPage.tsx
@@ -0,0 +1,164 @@
+import { useState } from 'react';
+import { Card, Button, Badge, Alert, useToast } from '@cameleer/design-system';
+import { useVendorAuthPolicy, useUpdateVendorAuthPolicy } from '../../api/vendor-hooks';
+import { errorMessage } from '../../api/client';
+import styles from './AuthPolicyPage.module.css';
+
+export function AuthPolicyPage() {
+  const { data: policy, isLoading } = useVendorAuthPolicy();
+  const updatePolicy = useUpdateVendorAuthPolicy();
+  const { toast } = useToast();
+  const [confirmRequired, setConfirmRequired] = useState(false);
+
+  if (isLoading || !policy) return null;
+
+  async function handleMfaModeChange(mode: string) {
+    if (mode === 'required' && policy?.mfaMode !== 'required') {
+      setConfirmRequired(true);
+      return;
+    }
+    try {
+      await updatePolicy.mutateAsync({ mfaMode: mode });
+      toast({ title: `MFA mode set to ${mode}`, variant: 'success' });
+    } catch (err) {
+      toast({ title: 'Failed to update policy', description: errorMessage(err), variant: 'error' });
+    }
+  }
+
+  async function handleConfirmRequired() {
+    try {
+      await updatePolicy.mutateAsync({ mfaMode: 'required' });
+      setConfirmRequired(false);
+      toast({ title: 'MFA is now required for all tenant admins', variant: 'success' });
+    } catch (err) {
+      toast({ title: 'Failed to update policy', description: errorMessage(err), variant: 'error' });
+    }
+  }
+
+  async function handlePasskeyToggle() {
+    try {
+      await updatePolicy.mutateAsync({ passkeyEnabled: !policy?.passkeyEnabled });
+      toast({
+        title: policy?.passkeyEnabled ? 'Passkeys disabled' : 'Passkeys enabled',
+        variant: 'success',
+      });
+    } catch (err) {
+      toast({ title: 'Failed to update policy', description: errorMessage(err), variant: 'error' });
+    }
+  }
+
+  async function handlePasskeyModeChange(mode: string) {
+    try {
+      await updatePolicy.mutateAsync({ passkeyMode: mode });
+      toast({ title: `Passkey mode set to ${mode}`, variant: 'success' });
+    } catch (err) {
+      toast({ title: 'Failed to update policy', description: errorMessage(err), variant: 'error' });
+    }
+  }
+
+  return (
+    <div style={{ padding: 24, display: 'flex', flexDirection: 'column', gap: 24, maxWidth: 720 }}>
+      <div>
+        <h1 style={{ margin: 0, fontSize: '1.25rem', fontWeight: 600 }}>Authentication Policy</h1>
+        <p className={styles.subtitle}>
+          Controls how tenant admins authenticate to the SaaS platform. This does not affect how
+          tenant users access their dashboards — tenants set their own policy.
+        </p>
+      </div>
+
+      <Card title="Multi-Factor Authentication">
+        <div style={{ padding: '0 20px 20px' }}>
+          <p className={styles.description}>
+            Require tenant admins to use MFA when accessing the management platform.
+          </p>
+          <div className={styles.controlRow}>
+            <span>MFA Mode</span>
+            <Badge label={policy.mfaMode} color={policy.mfaMode === 'required' ? 'success' : 'auto'} />
+          </div>
+          <div className={styles.buttonGroup}>
+            {['off', 'optional', 'required'].map((mode) => (
+              <Button
+                key={mode}
+                variant={policy.mfaMode === mode ? 'primary' : 'secondary'}
+                onClick={() => handleMfaModeChange(mode)}
+                loading={updatePolicy.isPending}
+                size="sm"
+              >
+                {mode.charAt(0).toUpperCase() + mode.slice(1)}
+              </Button>
+            ))}
+          </div>
+          {confirmRequired && (
+            <div style={{ marginTop: 12 }}>
+              <Alert variant="warning" title="Confirm MFA requirement">
+                All tenant admins who have not enrolled in MFA will be blocked from the platform
+                until they enroll.
+              </Alert>
+              <div className={styles.buttonGroup} style={{ marginTop: 12 }}>
+                <Button
+                  variant="primary"
+                  onClick={handleConfirmRequired}
+                  loading={updatePolicy.isPending}
+                >
+                  Yes, require MFA
+                </Button>
+                <Button variant="secondary" onClick={() => setConfirmRequired(false)}>
+                  Cancel
+                </Button>
+              </div>
+            </div>
+          )}
+        </div>
+      </Card>
+
+      <Card title="Passkeys">
+        <div style={{ padding: '0 20px 20px' }}>
+          <p className={styles.description}>
+            Allow tenant admins to use passkeys (fingerprint, face, or security key) for
+            authentication.
+          </p>
+          <div className={styles.controlRow}>
+            <span>Passkeys</span>
+            <Badge
+              label={policy.passkeyEnabled ? 'Enabled' : 'Disabled'}
+              color={policy.passkeyEnabled ? 'success' : 'auto'}
+            />
+          </div>
+          <Button
+            variant={policy.passkeyEnabled ? 'danger' : 'primary'}
+            onClick={handlePasskeyToggle}
+            loading={updatePolicy.isPending}
+            size="sm"
+          >
+            {policy.passkeyEnabled ? 'Disable passkeys' : 'Enable passkeys'}
+          </Button>
+
+          {policy.passkeyEnabled && (
+            <div style={{ marginTop: 16 }}>
+              <div className={styles.controlRow}>
+                <span>Passkey Mode</span>
+                <Badge
+                  label={policy.passkeyMode}
+                  color={policy.passkeyMode === 'required' ? 'success' : 'auto'}
+                />
+              </div>
+              <div className={styles.buttonGroup}>
+                {['optional', 'preferred', 'required'].map((mode) => (
+                  <Button
+                    key={mode}
+                    variant={policy.passkeyMode === mode ? 'primary' : 'secondary'}
+                    onClick={() => handlePasskeyModeChange(mode)}
+                    loading={updatePolicy.isPending}
+                    size="sm"
+                  >
+                    {mode.charAt(0).toUpperCase() + mode.slice(1)}
+                  </Button>
+                ))}
+              </div>
+            </div>
+          )}
+        </div>
+      </Card>
+    </div>
+  );
+}
diff --git a/ui/src/router.tsx b/ui/src/router.tsx
index 24b3721..0dd6359 100644
--- a/ui/src/router.tsx
+++ b/ui/src/router.tsx
@@ -18,6 +18,7 @@ import { InfrastructurePage } from './pages/vendor/InfrastructurePage';
 import { VendorMetricsPage } from './pages/vendor/VendorMetricsPage';
 import { EmailConfigPage } from './pages/vendor/EmailConfigPage';
 import { LicenseVerifyPage } from './pages/vendor/LicenseVerifyPage';
+import { AuthPolicyPage } from './pages/vendor/AuthPolicyPage';
 import { TenantDashboardPage } from './pages/tenant/TenantDashboardPage';
 import { TenantLicensePage } from './pages/tenant/TenantLicensePage';
 import { SsoPage } from './pages/tenant/SsoPage';
@@ -114,6 +115,11 @@ export function AppRouter() {
                 <LicenseVerifyPage />
               </RequireScope>
             } />
+            <Route path="/vendor/auth-policy" element={
+              <RequireScope scope="platform:admin" fallback={<Navigate to="/tenant" replace />}>
+                <AuthPolicyPage />
+              </RequireScope>
+            } />
 
             {/* Tenant portal */}
             <Route path="/tenant" element={<TenantDashboardPage />} />