diff --git a/native/farcaster/farcaster-sync-loading-screen.react.js b/native/farcaster/farcaster-sync-loading-screen.react.js
--- a/native/farcaster/farcaster-sync-loading-screen.react.js
+++ b/native/farcaster/farcaster-sync-loading-screen.react.js
@@ -37,6 +37,16 @@
         Comm is fetching all of your Farcaster messages so they can be backed
         up. This can take a while, depending on how many conversations you have.
       </Text>
+      <Text style={styles.section}>
+        Please note that Farcaster messages are not end-to-end encrypted, which
+        means the Farcaster team can see them. For better security, consider
+        using Comm DMs.
+      </Text>
+      <Text style={styles.section}>
+        If you notice any missing messages, you can manually refresh
+        conversations from your profile screen, or refresh individual threads
+        from their thread settings.
+      </Text>
       <View style={styles.progressContainer}>
         {progress ? (
           <Progress.Circle
diff --git a/web/farcaster/farcaster-sync-loading-screen.css b/web/farcaster/farcaster-sync-loading-screen.css
--- a/web/farcaster/farcaster-sync-loading-screen.css
+++ b/web/farcaster/farcaster-sync-loading-screen.css
@@ -12,7 +12,7 @@
 }
 
 div.loading {
-  width: 380px;
+  width: 600px;
   min-height: 438px;
   background: var(--auth-modal-bg);
   border: var(--auth-modal-border-color) solid 1px;
@@ -48,7 +48,7 @@
   font-size: var(--s-font-14);
   line-height: var(--line-height-text);
   color: var(--fg);
-  margin: 5px 0;
+  margin: 8px 0;
   font-weight: var(--normal);
 }
 
diff --git a/web/farcaster/farcaster-sync-loading-screen.react.js b/web/farcaster/farcaster-sync-loading-screen.react.js
--- a/web/farcaster/farcaster-sync-loading-screen.react.js
+++ b/web/farcaster/farcaster-sync-loading-screen.react.js
@@ -40,6 +40,16 @@
               backed up. This can take a while, depending on how many
               conversations you have.
             </p>
+            <p className={css.description}>
+              Please note that Farcaster messages are not end-to-end encrypted,
+              which means the Farcaster team can see them. For better security,
+              consider using Comm DMs.
+            </p>
+            <p className={css.description}>
+              If you notice any missing messages, you can manually refresh
+              conversations from the settings page, or refresh individual
+              threads from their thread settings.
+            </p>
             {progressComponent}
           </div>
           <div className={css.spinner}>