The five major moves to make Office documents more secure

Sometimes, Office documents save some confidential work, I am afraid that these documents are leaked, people are seen, then you need to protect the security of these documents, then there is a good way to introduce This is a question that many friends who are dealing with various documents on a daily basis often consult. In fact, these problems are relatively easy to solve. Document Security

Document Security Level The biggest security risk for Word documents is the macro virus, in order to prevent the macro virus Word from setting a security level concept. You can set it in the “Tools →Options →"Security" tab → Macro Security" Security Level" tab, security levels are divided into high, medium and low block. The high level will only run macros from trusted sources, all other macros will be canceled; the middle level will open a macro and you will see a warning asking you to enable it; the low level will not protect the macro. When you select a high level, macros in installed templates and add-ins (including wizards) may be disabled. You can only click on the “Reliable Sources” tab in the “Tools & Rarr; Options & Rarr; Security & Rarr; Macro Security” dialog box, and then click the “Trust all installed add-ins and templates” checkbox. In order for the installed macros not to be disabled. Note: All templates, add-ins, and macros that ship with Microsoft Office XP are digitally signed by Microsoft. Once an installation for one of these installed files is added to your list of trusted sources, subsequent interactions with those files will no longer generate messages. Protection of digital certificates The source of many documents is unknown, so security cannot be guaranteed. Office can use a digital certificate to confirm the source's reliability. And digitally sign the file or macro with a digital certificate. In general, digital certificates are obtained from commercial certification authorities and internal security administrators or information technology professionals. Ordinary users can use the Selfcert.exe tool to create a digital signature in person (since the digital certificate created by Selfcert.exe itself is not issued by a formal certification authority, the macro scheme of adding a signature using this certificate will be considered a self-signed scheme. This way other users may not be able to run self-signed macros). Signing a macro with a digital certificate is simple: open the file containing the macro scheme you want to sign, and select the scheme you want to sign in "Tools → Macro & Rarr; Visual Basic Editor & Rarr; Project Resource Manager". Click on the <quo;Tools & Rarr; Digital Signatures ” command.

Tip: 1. Be sure to sign the macro after the macro test is confirmed. Because the code of the signed macro scheme has been changed, its digital signature will be deleted. If it is a self-signed certificate, the macro scheme is automatically re-signed each time it is saved. 2. If you want to prevent the user from invalidating the signature due to accidental modification of the macro scheme, lock the macro scheme before signing it. Your digital signature only states that you are guaranteed to be safe and does not prove that you have written it. Therefore, locking the macro scheme does not prevent other users from replacing your digital signature with another signature. 3. If you have created an add-on that adds code to the macro scheme, the code should determine the following: If the scenario has been digitally signed, notify the user to modify the results of the signature scheme before proceeding. File Password Settings Word file passwords include two types: modify the permission password and open the permission password. Opening a privilege password makes the Word document a read-only file. If the document is opened and changed, the document can only be saved with a different file name. Modifying the permission password allows the user to modify the save at will. Specific settings: Open the file and set the password in the <quo;Tools →Options →Security” tab. Tip: To create a long password, click “Advanced” and select the RC4 encryption type. Prevent users from changing forms Because some documents need to protect the form so that others can only enter information in the specified area. So Office provides form protection. When you use the form protection feature, any information in the form field is reset. Specific method: <; Tools & Rarr; Protect Document & Rarr; Form & rdquo;. To assign a password to the form so that the user who knows the password can unprotect and modify the form, type the password in the "Password (not required)” box. Users who do not know the password can still enter information in the form field. If you want to protect the entire form, click the “OK” button. To protect only some of the forms, these sections must be in different sections, click “section”, and then clear the check boxes for sections that do not need protection.

The annotation of the annotation password is very important in the review, Office has protected the annotation in the "Tools & Rarr; Protection Document". You can protect by simply selecting the object you want to protect and typing it in the “password” box. Documents also have security issues, especially for Office documents. To make your documents more secure, Office provides comprehensive security and document protection features including: security level, digital signature, password settings, form protection, and annotation passwords.