diff --git a/Documentation.md b/Documentation.md
index 89d6af1..ddcdcd9 100644
--- a/Documentation.md
+++ b/Documentation.md
@@ -177,6 +177,9 @@ All setting are stored in `CryptoNotepad.settings` file. It's created after firs
 
 
 ## FAQ
+* `I got message that app is contain virus`
+<br>Crypto Notepad is an open source app, if you download it from the official website and you see such warning, then it false warning.
+
 * `What encryption values I need to use?`
 <br>Any value you want.  I can recommend to use these values  - **Hash algorithm:** SHA256/SHA384/SHA512, **Key size:** 256, **Password iterations:** more than 2000000
 * `Where is the tab support?`