Article See a list of active content, such as macros or add-ins, that might make the Message Bar appear.

Article See how to use digital signatures, or digital IDs, in Word, Excel, and PowerPoint.

Article See how to add, remove, or change a trusted location.

Article Learn what trusted publishers are and how to add, view, or remove them.

Link Downloads Marketplace area devoted to digital-signature services.

Article Use a certificate to digitally sign your macro project.

Article Passwords help protect your Microsoft Office 2010 files by encrypting them so other people will not be able read or change their contents. Your level of passwor...

Link Information about public and privates keys for digital signatures

Article Learn what trusted documents are and how to change the options.

Article See how to view the details for signatures and certificates.

Article Read about using File Block to help protect your computer from earlier Office file types.

Article Protected View is a read-only mode in which most editing functions are disabled to help protect you from potentially malicious software.