--- a/components/attribution_reporting/features.cc
+++ b/components/attribution_reporting/features.cc
@@ -11,7 +11,7 @@ namespace attribution_reporting::feature
 // Controls whether the Conversion Measurement API infrastructure is enabled.
 BASE_FEATURE(kConversionMeasurement,
              "ConversionMeasurement",
-             base::FEATURE_ENABLED_BY_DEFAULT);
+             base::FEATURE_DISABLED_BY_DEFAULT);
 
 BASE_FEATURE(kAttributionReportingTriggerContextId,
              "AttributionReportingTriggerContextId",
--- a/components/privacy_sandbox/privacy_sandbox_settings_impl.cc
+++ b/components/privacy_sandbox/privacy_sandbox_settings_impl.cc
@@ -125,7 +125,7 @@ std::set<browsing_topics::Topic> GetTopi
 
 // static
 bool PrivacySandboxSettingsImpl::IsAllowed(Status status) {
-  return status == Status::kAllowed;
+  return false;
 }
 
 // static
@@ -757,7 +757,7 @@ void PrivacySandboxSettingsImpl::SetTopi
 }
 
 bool PrivacySandboxSettingsImpl::IsPrivacySandboxRestricted() const {
-  return delegate_->IsPrivacySandboxRestricted();
+  return true;
 }
 
 bool PrivacySandboxSettingsImpl::IsPrivacySandboxCurrentlyUnrestricted() const {
@@ -826,11 +826,7 @@ PrivacySandboxSettingsImpl::GetPrivacySa
     return Status::kIncognitoProfile;
   }
 
-  if (IsPrivacySandboxRestricted() && !should_ignore_restriction) {
     return Status::kRestricted;
-  }
-
-  return Status::kAllowed;
 }
 
 PrivacySandboxSettingsImpl::Status
--- a/content/browser/aggregation_service/aggregation_service_features.cc
+++ b/content/browser/aggregation_service/aggregation_service_features.cc
@@ -8,7 +8,7 @@ namespace content {
 
 BASE_FEATURE(kPrivacySandboxAggregationService,
              "PrivacySandboxAggregationService",
-             base::FEATURE_ENABLED_BY_DEFAULT);
+             base::FEATURE_DISABLED_BY_DEFAULT);
 
 const base::FeatureParam<std::string>
     kPrivacySandboxAggregationServiceTrustedServerUrlAwsParam{