diff --git a/cards.md b/cards.md
index 04c27b1c473e23e73775fe76175f82b22f29ea65..1190e26c09d5dc212ff09552851fa49fdd7444b7 100644
--- a/cards.md
+++ b/cards.md
@@ -59,6 +59,7 @@ order: -1
 		<ul>
 			<li><a href="external/integrity/checksum">Ensuring Integrity of Data Files with Checksums</a></li>
 			<li><a href="external/integrity/encryption/disk">Encrypting the Startup Disk for Your Laptop/Desktop</a></li>
+			<li><a href="external/integrity/encryption/file">Data upload to cloud</a></li>
 			<li><a href="external/integrity/encryption/file">Encrypting Files and Folders</a></li>
 			<li><a href="external/integrity/naming">Naming files</a></li>
 			<li><a href="external/integrity/organization">Organization</a></li>