diff --git a/src/wp-includes/blocks/latest-posts.php b/src/wp-includes/blocks/latest-posts.php
index a43646edd7..961cf6b428 100644
--- a/src/wp-includes/blocks/latest-posts.php
+++ b/src/wp-includes/blocks/latest-posts.php
@@ -134,6 +134,10 @@ function render_block_core_latest_posts( $attributes ) {
 
 			$trimmed_excerpt = get_the_excerpt( $post );
 
+			if ( post_password_required( $post ) ) {
+				$trimmed_excerpt = __( 'This content is password protected.' );
+			}
+
 			$list_items_markup .= sprintf(
 				'<div class="wp-block-latest-posts__post-excerpt">%1$s</div>',
 				$trimmed_excerpt
@@ -142,9 +146,16 @@ function render_block_core_latest_posts( $attributes ) {
 
 		if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
 			&& isset( $attributes['displayPostContentRadio'] ) && 'full_post' === $attributes['displayPostContentRadio'] ) {
+
+			$post_content = wp_kses_post( html_entity_decode( $post->post_content, ENT_QUOTES, get_option( 'blog_charset' ) ) );
+
+			if ( post_password_required( $post ) ) {
+				$post_content = __( 'This content is password protected.' );
+			}
+
 			$list_items_markup .= sprintf(
 				'<div class="wp-block-latest-posts__post-full-content">%1$s</div>',
-				wp_kses_post( html_entity_decode( $post->post_content, ENT_QUOTES, get_option( 'blog_charset' ) ) )
+				$post_content
 			);
 		}