diff --git a/app/src/main/java/com/duckduckgo/app/survey/rmf/TemporaryDefaultSurveyParameters.kt b/app/src/main/java/com/duckduckgo/app/survey/rmf/TemporaryDefaultSurveyParameters.kt
new file mode 100644
index 000000000000..6cb3c9526ff3
--- /dev/null
+++ b/app/src/main/java/com/duckduckgo/app/survey/rmf/TemporaryDefaultSurveyParameters.kt
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2025 DuckDuckGo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.duckduckgo.app.survey.rmf
+
+import com.duckduckgo.app.browser.senseofprotection.SenseOfProtectionToggles
+import com.duckduckgo.di.scopes.AppScope
+import com.duckduckgo.survey.api.SurveyParameterPlugin
+import com.squareup.anvil.annotations.ContributesMultibinding
+import javax.inject.Inject
+
+// Added while senseOfProtectionNewUserExperimentApr25 is active
+@ContributesMultibinding(AppScope::class)
+class SenseOfProtectionCohortSurveyParameterPlugin @Inject constructor(
+    private val senseOfProtectionToggles: SenseOfProtectionToggles,
+) : SurveyParameterPlugin {
+    override val surveyParamKey: String = "senseProtectionCohort"
+
+    override suspend fun evaluate(): String = senseOfProtectionToggles.senseOfProtectionNewUserExperimentApr25().getCohort()?.name.orEmpty()
+}
diff --git a/app/src/main/java/com/duckduckgo/app/tabs/ui/TabSwitcherViewModel.kt b/app/src/main/java/com/duckduckgo/app/tabs/ui/TabSwitcherViewModel.kt
index dc12daca0e69..98843f019ed3 100644
--- a/app/src/main/java/com/duckduckgo/app/tabs/ui/TabSwitcherViewModel.kt
+++ b/app/src/main/java/com/duckduckgo/app/tabs/ui/TabSwitcherViewModel.kt
@@ -22,9 +22,9 @@ import androidx.lifecycle.asLiveData
 import androidx.lifecycle.viewModelScope
 import com.duckduckgo.anvil.annotations.ContributesViewModel
 import com.duckduckgo.app.browser.SwipingTabsFeatureProvider
+import com.duckduckgo.app.browser.favicon.FaviconManager
 import com.duckduckgo.app.browser.senseofprotection.SenseOfProtectionExperiment
 import com.duckduckgo.app.browser.senseofprotection.SenseOfProtectionToggles.Cohorts.VARIANT_2
-import com.duckduckgo.app.browser.favicon.FaviconManager
 import com.duckduckgo.app.pixels.AppPixelName
 import com.duckduckgo.app.pixels.AppPixelName.TAB_MANAGER_GRID_VIEW_BUTTON_CLICKED
 import com.duckduckgo.app.pixels.AppPixelName.TAB_MANAGER_INFO_PANEL_DISMISSED
diff --git a/app/src/test/java/com/duckduckgo/app/survey/rmf/TemporaryDefaultSurveyParametersPluginTest.kt b/app/src/test/java/com/duckduckgo/app/survey/rmf/TemporaryDefaultSurveyParametersPluginTest.kt
new file mode 100644
index 000000000000..88be39fb5802
--- /dev/null
+++ b/app/src/test/java/com/duckduckgo/app/survey/rmf/TemporaryDefaultSurveyParametersPluginTest.kt
@@ -0,0 +1,72 @@
+package com.duckduckgo.app.survey.rmf
+
+import com.duckduckgo.app.browser.senseofprotection.SenseOfProtectionToggles
+import com.duckduckgo.app.browser.senseofprotection.SenseOfProtectionToggles.Cohorts
+import com.duckduckgo.feature.toggles.api.Toggle
+import com.duckduckgo.feature.toggles.api.Toggle.State.Cohort
+import kotlinx.coroutines.test.runTest
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.mockito.kotlin.doReturn
+import org.mockito.kotlin.mock
+import org.mockito.kotlin.whenever
+
+class TemporaryDefaultSurveyParametersPluginTest {
+
+    private val mockSenseOfProtectionToggles: SenseOfProtectionToggles = mock()
+
+    @Test
+    fun givenUserAssignedToModifiedControlThenCohortParamEvaluatesToModifiedControl() = runTest {
+        val modifiedControlCohort = Cohort(Cohorts.MODIFIED_CONTROL.cohortName, 1)
+        val mockToggle: Toggle = mock {
+            on { it.isEnabled() } doReturn true
+            on { it.getCohort() } doReturn modifiedControlCohort
+        }
+        whenever(mockSenseOfProtectionToggles.senseOfProtectionNewUserExperimentApr25()).thenReturn(mockToggle)
+
+        val plugin = SenseOfProtectionCohortSurveyParameterPlugin(mockSenseOfProtectionToggles)
+
+        assertEquals("modifiedControl", plugin.evaluate())
+    }
+
+    @Test
+    fun givenUserAssignedToVariant1ThenCohortParamEvaluatesToVariant1() = runTest {
+        val modifiedControlCohort = Cohort(Cohorts.VARIANT_1.cohortName, 1)
+        val mockToggle: Toggle = mock {
+            on { it.isEnabled() } doReturn true
+            on { it.getCohort() } doReturn modifiedControlCohort
+        }
+        whenever(mockSenseOfProtectionToggles.senseOfProtectionNewUserExperimentApr25()).thenReturn(mockToggle)
+
+        val plugin = SenseOfProtectionCohortSurveyParameterPlugin(mockSenseOfProtectionToggles)
+
+        assertEquals("variant1", plugin.evaluate())
+    }
+
+    @Test
+    fun givenUserAssignedToVariant2ThenCohortParamEvaluatesToVariant2() = runTest {
+        val modifiedControlCohort = Cohort(Cohorts.VARIANT_2.cohortName, 2)
+        val mockToggle: Toggle = mock {
+            on { it.isEnabled() } doReturn true
+            on { it.getCohort() } doReturn modifiedControlCohort
+        }
+        whenever(mockSenseOfProtectionToggles.senseOfProtectionNewUserExperimentApr25()).thenReturn(mockToggle)
+
+        val plugin = SenseOfProtectionCohortSurveyParameterPlugin(mockSenseOfProtectionToggles)
+
+        assertEquals("variant2", plugin.evaluate())
+    }
+
+    @Test
+    fun givenNotAssignedOnSenseOfProtectionExperimentThenCohortParamEvaluatesToEmptyString() = runTest {
+        val mockToggle: Toggle = mock {
+            on { it.isEnabled() } doReturn false
+            on { it.getCohort() } doReturn null
+        }
+        whenever(mockSenseOfProtectionToggles.senseOfProtectionNewUserExperimentApr25()).thenReturn(mockToggle)
+
+        val plugin = SenseOfProtectionCohortSurveyParameterPlugin(mockSenseOfProtectionToggles)
+
+        assertEquals("", plugin.evaluate())
+    }
+}