The Word document security is flawed. Mouseover reveals first few.

[syko21]

I have used Word security to encrypt the contents of a file so no one other
than myself is able to read it. However I have noticed that a mouseover in a
window over the file will reveal the first sentence of the document. This is
absolutely unacceptable. Please remedy this ASAP

 

[Jay Freedman]

I have used Word security to encrypt the contents of a file so no one other
than myself is able to read it. However I have noticed that a mouseover in a
window over the file will reveal the first sentence of the document. This is
absolutely unacceptable. Please remedy this ASAP

That information is coming from the Title box in the File > Properties
dialog, which Word automatically populates with the first line of the
document. Go to the dialog and delete its contents, and the text won't
be visible in the mouseover any longer.

By the way, when you post here you are NOT talking to anyone at
Microsoft. We're all peers here, just users, not Microsoft employees.