Notezilla uses Microsoft's Azure cloud system, which is highly secure. You can read about it over here: https://docs.microsoft.com/en-us/azure/security/fundamentals/overview. Also we are using SSL to securely transfer the sticky notes.
Notezilla lets you to password protect a sticky note so that it cannot be read or edited. Also, the sticky note is encrypted so that it cannot be read from the database too.
Watch this video to learn more:
A single master password is used to lock/unlock any sticky note. If you are locking a sticky note for the first time after installing Notezilla , you will be requested to set the master password. You can change this master password using Preferences.
Locking a Note
Right click on the note title or note toolbar and choose Lock menu item to lock the note. A locked note is always rolled up so that its content cannot be seen or edited.
Unlocking a Note
To unlock a locked note, click on the lock icon in the note toolbar.