diff --git a/lib/utils/config.js b/lib/utils/config.js
--- a/lib/utils/config.js
+++ b/lib/utils/config.js
@@ -9,6 +9,7 @@
 import type { OlmAPI } from '../types/crypto-types.js';
 import type { PlatformDetails } from '../types/device-types.js';
 import type { SQLiteAPI } from '../types/sqlite-types.js';
+import type { CurrentUserInfo } from '../types/user-types.js';
 import type { DispatchActionPromise } from '../utils/redux-promise-utils.js';
 
 export type Config = {
@@ -29,6 +30,9 @@
   +authoritativeKeyserverID: string,
   +olmAPI: OlmAPI,
   +sqliteAPI: SQLiteAPI,
+  +createBackupCompaction?: (
+    currentUserInfo: ?CurrentUserInfo,
+  ) => Promise<void>,
 };
 
 let registeredConfig: ?Config = null;
diff --git a/lib/utils/migration-utils.js b/lib/utils/migration-utils.js
--- a/lib/utils/migration-utils.js
+++ b/lib/utils/migration-utils.js
@@ -6,6 +6,7 @@
 import { getConfig } from './config.js';
 import type { TranslatedThreadMessageInfos } from './message-ops-utils.js';
 import { entries } from './objects.js';
+import { backupEnabledByDefault } from './services-utils.js';
 import {
   convertRawMessageInfoToNewIDSchema,
   convertRawThreadInfoToNewIDSchema,
@@ -252,7 +253,7 @@
       return state;
     }
 
-    const { state: newState } = await runMigrations(
+    const { state: newState, schemaChanged } = await runMigrations(
       legacyMigrations,
       migrations,
       state,
@@ -262,6 +263,16 @@
       handleException,
     );
 
+    if (
+      schemaChanged &&
+      state.currentUserInfo &&
+      !state.currentUserInfo.anonymous &&
+      backupEnabledByDefault
+    ) {
+      await getConfig().olmAPI.initializeCryptoAccount();
+      await getConfig().createBackupCompaction?.(state.currentUserInfo);
+    }
+
     return newState;
   };
 }
diff --git a/lib/utils/services-utils.js b/lib/utils/services-utils.js
--- a/lib/utils/services-utils.js
+++ b/lib/utils/services-utils.js
@@ -18,6 +18,12 @@
 // an authoritative keyserver for things like DMs.
 const relyingOnAuthoritativeKeyserver = true;
 
+// Currently, the backup can only be performed when a switch in dev menu is
+// enabled. At some point we will remove the switch and start performing
+// the backup for all the primary devices. If this flag is true, we're assuming
+// that all the primary devices are backed up.
+const backupEnabledByDefault = false;
+
 function handleHTTPResponseError(response: Response): void {
   if (!response.ok) {
     const { status, statusText } = response;
@@ -47,6 +53,7 @@
   usingCommServicesAccessToken,
   supportingMultipleKeyservers,
   relyingOnAuthoritativeKeyserver,
+  backupEnabledByDefault,
   createHTTPAuthorizationHeader,
   createDefaultHTTPRequestHeaders,
 };
diff --git a/native/backup/use-client-backup.js b/native/backup/use-client-backup.js
--- a/native/backup/use-client-backup.js
+++ b/native/backup/use-client-backup.js
@@ -5,6 +5,7 @@
 import { isLoggedIn } from 'lib/selectors/user-selectors.js';
 import { accountHasPassword } from 'lib/shared/account-utils.js';
 import type { SIWEBackupSecrets } from 'lib/types/siwe-types.js';
+import type { CurrentUserInfo } from 'lib/types/user-types';
 import { getContentSigningKey } from 'lib/utils/crypto-utils.js';
 
 import { fetchNativeKeychainCredentials } from '../account/native-credentials.js';
@@ -42,6 +43,17 @@
   return siweBackupSecrets;
 }
 
+async function createBackup(currentUserInfo: ?CurrentUserInfo): Promise<void> {
+  commCoreModule.startBackupHandler();
+  if (accountHasPassword(currentUserInfo)) {
+    const backupSecret = await getBackupSecret();
+    await commCoreModule.createNewBackup(backupSecret);
+  } else {
+    const { message, signature } = await getSIWEBackupSecrets();
+    await commCoreModule.createNewSIWEBackup(signature, message);
+  }
+}
+
 function useClientBackup(): ClientBackup {
   const accessToken = useSelector(state => state.commServicesAccessToken);
   const currentUserID = useSelector(
@@ -72,13 +84,7 @@
 
     await setMockCommServicesAuthMetadata();
 
-    if (accountHasPassword(currentUserInfo)) {
-      const backupSecret = await getBackupSecret();
-      await commCoreModule.createNewBackup(backupSecret);
-    } else {
-      const { message, signature } = await getSIWEBackupSecrets();
-      await commCoreModule.createNewSIWEBackup(signature, message);
-    }
+    await createBackup(currentUserInfo);
 
     console.info('Backup uploaded.');
   }, [
@@ -147,4 +153,4 @@
   };
 }
 
-export { getBackupSecret, useClientBackup };
+export { getBackupSecret, useClientBackup, createBackup };
diff --git a/native/config.js b/native/config.js
--- a/native/config.js
+++ b/native/config.js
@@ -6,6 +6,7 @@
 
 import { resolveKeyserverSessionInvalidationUsingNativeCredentials } from './account/legacy-recover-keyserver-session.js';
 import { authoritativeKeyserverID } from './authoritative-keyserver.js';
+import { createBackup } from './backup/use-client-backup.js';
 import { olmAPI } from './crypto/olm-api.js';
 import { sqliteAPI } from './database/sqlite-api.js';
 import { persistConfig, codeVersion } from './redux/persist.js';
@@ -22,4 +23,5 @@
   authoritativeKeyserverID,
   olmAPI,
   sqliteAPI,
+  createBackupCompaction: createBackup,
 });