diff --git a/app/Livewire/Project/Application/General.php b/app/Livewire/Project/Application/General.php
index ac30f04cd7..97b82025be 100644
--- a/app/Livewire/Project/Application/General.php
+++ b/app/Livewire/Project/Application/General.php
@@ -426,7 +426,9 @@ class General extends Component
             $this->customNginxConfiguration = $this->application->custom_nginx_configuration;
             $this->isHttpBasicAuthEnabled = $this->application->is_http_basic_auth_enabled;
             $this->httpBasicAuthUsername = $this->application->http_basic_auth_username;
-            $this->httpBasicAuthPassword = $this->application->http_basic_auth_password;
+            $this->httpBasicAuthPassword = auth()->user()->can('update', $this->application)
+                ? $this->application->http_basic_auth_password
+                : null;
             $this->watchPaths = $this->application->watch_paths;
             $this->redirect = $this->application->redirect;
 
diff --git a/app/Livewire/Server/LogDrains.php b/app/Livewire/Server/LogDrains.php
index c3f36f7a7e..cdc4162bba 100644
--- a/app/Livewire/Server/LogDrains.php
+++ b/app/Livewire/Server/LogDrains.php
@@ -60,7 +60,9 @@ class LogDrains extends Component
             $this->server->settings->logdrain_newrelic_base_uri = $this->logDrainNewRelicBaseUri;
         } else {
             $this->isLogDrainNewRelicEnabled = $this->server->settings->is_logdrain_newrelic_enabled;
-            $this->logDrainNewRelicLicenseKey = $this->server->settings->logdrain_newrelic_license_key;
+            $this->logDrainNewRelicLicenseKey = auth()->user()->can('update', $this->server)
+                ? $this->server->settings->logdrain_newrelic_license_key
+                : null;
             $this->logDrainNewRelicBaseUri = $this->server->settings->logdrain_newrelic_base_uri;
         }
     }
@@ -74,7 +76,9 @@ class LogDrains extends Component
         } else {
             $this->isLogDrainAxiomEnabled = $this->server->settings->is_logdrain_axiom_enabled;
             $this->logDrainAxiomDatasetName = $this->server->settings->logdrain_axiom_dataset_name;
-            $this->logDrainAxiomApiKey = $this->server->settings->logdrain_axiom_api_key;
+            $this->logDrainAxiomApiKey = auth()->user()->can('update', $this->server)
+                ? $this->server->settings->logdrain_axiom_api_key
+                : null;
         }
     }
 
@@ -86,8 +90,12 @@ class LogDrains extends Component
             $this->server->settings->logdrain_custom_config_parser = $this->logDrainCustomConfigParser;
         } else {
             $this->isLogDrainCustomEnabled = $this->server->settings->is_logdrain_custom_enabled;
-            $this->logDrainCustomConfig = $this->server->settings->logdrain_custom_config;
-            $this->logDrainCustomConfigParser = $this->server->settings->logdrain_custom_config_parser;
+            $this->logDrainCustomConfig = auth()->user()->can('update', $this->server)
+                ? $this->server->settings->logdrain_custom_config
+                : null;
+            $this->logDrainCustomConfigParser = auth()->user()->can('update', $this->server)
+                ? $this->server->settings->logdrain_custom_config_parser
+                : null;
         }
     }
 
diff --git a/app/Livewire/Server/Sentinel.php b/app/Livewire/Server/Sentinel.php
index 0ad55a9deb..4719033f92 100644
--- a/app/Livewire/Server/Sentinel.php
+++ b/app/Livewire/Server/Sentinel.php
@@ -43,6 +43,7 @@ class Sentinel extends Component
 
     public function mount()
     {
+        $this->authorize('viewSentinel', $this->server);
         $this->syncData();
     }
 
diff --git a/app/Livewire/Server/Show.php b/app/Livewire/Server/Show.php
index 3dbf7f73bd..a0365f8056 100644
--- a/app/Livewire/Server/Show.php
+++ b/app/Livewire/Server/Show.php
@@ -286,11 +286,15 @@ class Show extends Component
             $this->isSwarmWorker = $this->server->settings->is_swarm_worker;
             $this->serverRole = $this->server->settings->effectiveServerRole()->value;
             $this->isMetricsEnabled = $this->server->settings->is_metrics_enabled;
-            $this->sentinelToken = $this->server->settings->sentinel_token;
+            $this->sentinelToken = auth()->user()->can('update', $this->server)
+                ? $this->server->settings->sentinel_token
+                : '';
             $this->sentinelMetricsRefreshRateSeconds = $this->server->settings->sentinel_metrics_refresh_rate_seconds;
             $this->sentinelMetricsHistoryDays = $this->server->settings->sentinel_metrics_history_days;
             $this->sentinelPushIntervalSeconds = $this->server->settings->sentinel_push_interval_seconds;
-            $this->sentinelCustomUrl = $this->server->settings->sentinel_custom_url;
+            $this->sentinelCustomUrl = auth()->user()->can('update', $this->server)
+                ? $this->server->settings->sentinel_custom_url
+                : null;
             $this->isSentinelDebugEnabled = $this->server->settings->is_sentinel_debug_enabled;
             $this->sentinelUpdatedAt = $this->server->sentinel_updated_at;
             $this->serverTimezone = $this->server->settings->server_timezone;
diff --git a/tests/Feature/LivewireResourceDataVisibilityTest.php b/tests/Feature/LivewireResourceDataVisibilityTest.php
new file mode 100644
index 0000000000..d32e036e7d
--- /dev/null
+++ b/tests/Feature/LivewireResourceDataVisibilityTest.php
@@ -0,0 +1,135 @@
+<?php
+
+use App\Livewire\Project\Application\General;
+use App\Livewire\Server\LogDrains;
+use App\Livewire\Server\Sentinel;
+use App\Livewire\Server\Show;
+use App\Models\Application;
+use App\Models\Environment;
+use App\Models\InstanceSettings;
+use App\Models\Project;
+use App\Models\Server;
+use App\Models\StandaloneDocker;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Livewire\Livewire;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    InstanceSettings::unguarded(fn () => InstanceSettings::firstOrCreate(['id' => 0]));
+    $this->team = Team::factory()->create(['show_boarding' => false]);
+    $this->member = User::factory()->create();
+    $this->admin = User::factory()->create();
+    $this->team->members()->attach($this->member, ['role' => 'member']);
+    $this->team->members()->attach($this->admin, ['role' => 'admin']);
+    $this->server = Server::factory()->create(['team_id' => $this->team->id]);
+    $this->server->settings->updateQuietly([
+        'sentinel_token' => 'SENTINEL-MARKER-SECRET',
+        'sentinel_custom_url' => 'https://sentinel.example.test/MARKER-SECRET',
+        'logdrain_newrelic_license_key' => 'NEWRELIC-MARKER-SECRET',
+        'logdrain_axiom_api_key' => 'AXIOM-MARKER-SECRET',
+        'logdrain_custom_config' => 'CUSTOM-CONFIG-MARKER-SECRET',
+        'logdrain_custom_config_parser' => 'CUSTOM-PARSER-MARKER-SECRET',
+    ]);
+    $this->project = Project::factory()->create(['team_id' => $this->team->id]);
+    $this->environment = Environment::factory()->create(['project_id' => $this->project->id]);
+    $destination = StandaloneDocker::query()->where('server_id', $this->server->id)->firstOrFail();
+    $this->application = Application::factory()->create([
+        'environment_id' => $this->environment->id,
+        'destination_id' => $destination->id,
+        'destination_type' => $destination->getMorphClass(),
+        'http_basic_auth_password' => 'BASIC-MARKER-SECRET',
+        'is_http_basic_auth_enabled' => true,
+        'http_basic_auth_username' => 'admin',
+        'redirect' => 'no',
+        'static_image' => 'nginx:alpine',
+        'base_directory' => '/',
+        'build_pack' => 'nixpacks',
+    ]);
+});
+
+function useSecretExposureUser(User $user, Team $team): void
+{
+    test()->actingAs($user);
+    session(['currentTeam' => $team]);
+}
+
+test('server overview redacts the Sentinel token from a member snapshot', function () {
+    useSecretExposureUser($this->member, $this->team);
+    Livewire::test(Show::class, ['server_uuid' => $this->server->uuid])
+        ->assertSuccessful()->assertSet('sentinelToken', '')->assertSet('sentinelCustomUrl', null)
+        ->call('refresh')->assertSet('sentinelToken', '')->assertSet('sentinelCustomUrl', null);
+    $this->get(route('server.show', ['server_uuid' => $this->server->uuid]))
+        ->assertSuccessful()->assertDontSee('SENTINEL-MARKER-SECRET')->assertDontSee('sentinel.example.test/MARKER-SECRET');
+
+    useSecretExposureUser($this->admin, $this->team);
+    Livewire::test(Show::class, ['server_uuid' => $this->server->uuid])
+        ->assertSuccessful()->assertSet('sentinelToken', 'SENTINEL-MARKER-SECRET')
+        ->assertSet('sentinelCustomUrl', 'https://sentinel.example.test/MARKER-SECRET');
+});
+
+test('log drain page redacts provider keys from a member snapshot', function () {
+    useSecretExposureUser($this->member, $this->team);
+    Livewire::test(LogDrains::class, ['server_uuid' => $this->server->uuid])
+        ->assertSuccessful()->assertSet('logDrainNewRelicLicenseKey', null)->assertSet('logDrainAxiomApiKey', null)
+        ->assertSet('logDrainCustomConfig', null)->assertSet('logDrainCustomConfigParser', null);
+    $this->get(route('server.log-drains', ['server_uuid' => $this->server->uuid]))
+        ->assertSuccessful()->assertDontSee('NEWRELIC-MARKER-SECRET')->assertDontSee('AXIOM-MARKER-SECRET')
+        ->assertDontSee('CUSTOM-CONFIG-MARKER-SECRET')->assertDontSee('CUSTOM-PARSER-MARKER-SECRET');
+
+    useSecretExposureUser($this->admin, $this->team);
+    Livewire::test(LogDrains::class, ['server_uuid' => $this->server->uuid])
+        ->assertSuccessful()->assertSet('logDrainNewRelicLicenseKey', 'NEWRELIC-MARKER-SECRET')
+        ->assertSet('logDrainAxiomApiKey', 'AXIOM-MARKER-SECRET')
+        ->assertSet('logDrainCustomConfig', 'CUSTOM-CONFIG-MARKER-SECRET')
+        ->assertSet('logDrainCustomConfigParser', 'CUSTOM-PARSER-MARKER-SECRET');
+});
+
+test('application page redacts HTTP basic password from a member snapshot', function () {
+    useSecretExposureUser($this->member, $this->team);
+    Livewire::test(General::class, ['application' => $this->application])
+        ->assertSuccessful()->assertSet('httpBasicAuthPassword', null);
+    $this->get(route('project.application.configuration', [
+        'project_uuid' => $this->project->uuid,
+        'environment_uuid' => $this->environment->uuid,
+        'application_uuid' => $this->application->uuid,
+    ]))->assertSuccessful()->assertDontSee('BASIC-MARKER-SECRET');
+
+    useSecretExposureUser($this->admin, $this->team);
+    Livewire::test(General::class, ['application' => $this->application])
+        ->assertSuccessful()->assertSet('httpBasicAuthPassword', 'BASIC-MARKER-SECRET');
+});
+
+test('the dedicated Sentinel page denies members and cross-team users', function () {
+    useSecretExposureUser($this->member, $this->team);
+    $this->get(route('server.sentinel', ['server_uuid' => $this->server->uuid]))->assertForbidden();
+    Livewire::test(Sentinel::class, ['server' => $this->server])->assertForbidden();
+
+    useSecretExposureUser($this->admin, $this->team);
+    $this->get(route('server.sentinel', ['server_uuid' => $this->server->uuid]))->assertSuccessful();
+    Livewire::test(Sentinel::class, ['server' => $this->server])
+        ->assertSuccessful()->assertSet('sentinelToken', 'SENTINEL-MARKER-SECRET');
+
+    $outsider = User::factory()->create();
+    $outsideTeam = $outsider->teams()->first();
+    $outsideTeam->updateQuietly(['show_boarding' => false]);
+    useSecretExposureUser($outsider, $outsideTeam);
+    $this->get(route('server.show', ['server_uuid' => $this->server->uuid]))->assertNotFound();
+    $this->get(route('server.log-drains', ['server_uuid' => $this->server->uuid]))->assertNotFound();
+    $this->get(route('server.sentinel', ['server_uuid' => $this->server->uuid]))->assertNotFound();
+    $this->get(route('project.application.configuration', [
+        'project_uuid' => $this->project->uuid,
+        'environment_uuid' => $this->environment->uuid,
+        'application_uuid' => $this->application->uuid,
+    ]))->assertNotFound();
+});
+
+test('model serialization keeps the three secrets hidden', function () {
+    expect(json_encode($this->server->toArray()))
+        ->not->toContain('SENTINEL-MARKER-SECRET', 'NEWRELIC-MARKER-SECRET', 'AXIOM-MARKER-SECRET', 'CUSTOM-CONFIG-MARKER-SECRET', 'CUSTOM-PARSER-MARKER-SECRET', 'sentinel.example.test/MARKER-SECRET');
+    expect(json_encode($this->server->settings->toArray()))
+        ->not->toContain('SENTINEL-MARKER-SECRET', 'NEWRELIC-MARKER-SECRET', 'AXIOM-MARKER-SECRET', 'CUSTOM-CONFIG-MARKER-SECRET', 'CUSTOM-PARSER-MARKER-SECRET', 'sentinel.example.test/MARKER-SECRET');
+    expect(json_encode($this->application->toArray()))->not->toContain('BASIC-MARKER-SECRET');
+});