diff --git a/data_storage.md b/data_storage.md
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--- a/data_storage.md
+++ b/data_storage.md
@@ -1,5 +1,7 @@
 # Data Storeage
 
+Passwords and credentials. Use KeePass-based password managers.
+
 ## Databases
 
 * [SQLite](https://docs.python.org/3/library/sqlite3.html) (RDMS)