Introduction to Access security

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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Select Language:. Choose the download you want. Download Summary:. Total Size: 0. Back Next. Microsoft recommends you install a download manager. Microsoft Download Manager. To help make your data more secure, Access and the Trust Center perform a set of security checks whenever you open a database. The process works as follows:. When you open an.

If the Trust Center determines that the location is trusted, the database runs with full functionality. If you open a database that has an earlier file format, Access submits the location of the file and details about its digital signature if any to the Trust Center.

The Trust Center checks that “evidence” to evaluate trust for the database and then informs Access how to open the database. Access either disables the database or opens it with full functionality. Note: Remember that the settings you or your system administrator choose in the Trust Center control the trust decisions that occur when Access opens a database. For more information about using the Trust Center, see the See Also section. To enable the database content, click Options and then choose the appropriate options in the dialog box that appears.

Access enables the disabled content, and the database reopens with full functionality. Otherwise, the disabled components will not work. If you open a database that was created in the earlier file format. When the Trust Center evaluates a database as untrusted, Access opens that database in Disabled mode — that is, it turns off all executable content, regardless of the database file format.

Unsafe actions in all macros. However, actions that Access disables can sometimes be considered “safe. Action Queries These add, update, and delete data. Pass-through queries work with the tables on the server without involving the Access database engine. When a database opens, Access might attempt to load add-ins — programs that extend the functionality of either Access or the open database. You also might want to run wizards that create objects in the open database.

When an add-in is loaded or a wizard starts, Access passes evidence to the Trust Center, which makes additional trust decisions and either enables or disables the object or action. Whenever the Trust Center disables a database and you disagree with that decision, you can almost always use the Message Bar to enable the content. Add-ins provide the exception to that rule. If, in the Trust Center in the Add-ins pane , you select the Require Application Extensions to be Signed by Trusted Publisher check box, Access prompts you to enable the add-in, but that process does not involve the Message Bar.

When you place an Access database in a trusted location, all VBA code, macros, and safe expressions run when you open the database. You do not have to make trust decisions while the database opens. The following sets of steps explain how to find or create a trusted location and then add a database to that location.

Create a new trusted location. To do so, click Add new location , and then complete the options in the Microsoft Office Trusted Location dialog box. Use your favorite technique for moving or copying a database file to a trusted location. For example, you can use Windows Explorer to copy or move the file, or you can open the file in Access and save it to the trusted location. Use your favorite technique for opening a file. For example, you can double-click the database file in Windows Explorer, or, if Access is running, you can click Open on the File tab to locate and open the file.

Access makes it easy and fast to sign and distribute a database. When you create an. The Package and Sign tool places the database in an Access Deployment. Others can then extract the database from the package and work directly in the database not in the package file. Packaging a database and signing the package is a way to convey trust. When you package and sign a database, your digital signature confirms that the database has not been altered after you created the package.

After the database is extracted from the package, there is no longer a connection between the signed package and the extracted database. You can use the Package and Sign tool only with databases saved in. Access also provides tools to sign and distribute databases that were created in an earlier file format. You must use the digital signature tool that is appropriate for the database file format that you are using.

The process digitally signs a package that contains your entire database, not just macros or modules. You can extract databases from package files that are located on Windows SharePoint Services 3. The steps in the following sections explain how to create a signed package file and how to extract and use the database from a signed package file.

Enter a name for the signed package in the File name box, and then click Create. Use the Look in list to locate the folder that contains your. If you chose to trust the security certificate that was used to sign the deployment package, the Extract Database To dialog box appears.

Go to the next step. If you trust the database, click Open. If you trust any certificate from that provider, click Trust all From Publisher. The Extract Database To dialog box appears. Note: If you use a self-signed certificate to sign a database package and then click Trust all from publisher when you open that package, packages signed by using your self-signed certificates will always be trusted. Optionally, in the Save in list, select a location for the extracted database and then, in the File name box, enter a different name for the extracted database.

Tip: If you extract the database to a trusted location, its contents will be automatically enabled whenever you open it. If you choose a non-trusted location, some database content may be disabled by default. By default, Access disables all executable content in a database unless you either trust the database or place the database in a trusted location.

When you open a database, Access disables the content and displays the Message Bar. Also by default, Access no longer displays a set of modal dialog boxes dialog boxes that require you to make a decision before you can do anything else when you open a database, as it did in Access If you prefer that behavior, you can add a registry key and display an older modal dialog box.

Regardless of how Access behaves when it opens a database, if that database comes from a reliable publisher, you can choose to enable the executable components in the file — to trust the database.

Important: When you click Enable Content , Access enables all disabled content, including potentially malicious code. If malicious code harms your data or your computer, Access cannot undo that damage. Click the Close button X in the upper corner of the Message Bar. The Message Bar closes. It will reappear the next time that you open the dataabse, unless you move the database to a trusted location.

Caution Incorrectly editing the registry may severely damage your operating system, requiring you to reinstall it. Microsoft cannot guarantee that problems resulting from editing the registry incorrectly can be resolved. Before editing the registry, back up any valuable data. For the most recent information about using and protecting your computer’s registry, see Microsoft Windows Help.

In Microsoft Windows, click the Start button, and then click Run. In the Value Data field, change the 0 value to 1 , and then click OK. Now when you open a database that contains unsafe content, you see a series of dialog boxes instead of the Message Bar. To revert to the original behavior, repeat these steps and change the 1 value to 0.

The encryption tool in Access combines and improves on two older tools — encoding and database passwords. When you use a database password to encrypt a database, you make all data unreadable by other tools, and you force users to enter a password to use the database.

The encryption applied in Access uses a stronger algorithm than was used in earlier versions of Access. Note: If you used a database password in Access to encrypt a database, you might want to switch to the new encryption technology, which helps provide better security. To switch to the new encryption technology, remove the current database password, and then add it back. In the Open dialog box, browse to the file that you want to open, and then select the file.

Click the arrow next to the Open button, and then click Open Exclusive. On the File tab, click Info , and then click Encrypt with Password.

Type your password in the Password box, and then type it again in the Verify field. Use strong passwords that combine uppercase and lowercase letters, numbers, and symbols. Weak passwords don’t mix these elements. Strong password: Y6dh! Weak password: House Passwords should be 8 or more characters in length.

A pass phrase that uses 14 or more characters is better. It is critical that you remember your password. If you forget your password, Microsoft cannot retrieve it.

Store the passwords that you write down in a secure place away from the information that they help protect. Type your password in the Enter database password box, and then click OK.

On the File tab, click Info , and then click Decrypt Database. Type your password in the Password box, and then click OK. When you open a database that was created in an earlier version of Access, any security features applied to that database still work. For example, if you applied user-level security to a database, the feature works in Access By default, Access opens all older untrusted databases in Disabled mode and keeps them in that state. You can choose to enable any disabled content each time you open the older database, or you can apply a digital signature by using a certificate from a trusted publisher, or you can place the database in a trusted location.

For databases in an older file format, you can apply a digital signature to the components in the database. A digital signature confirms that any macros, code modules, and other executable components in the database originated with the signer and that no one has altered them since the database was signed.

To apply a signature to your database, you first need a digital certificate. If you create databases for commercial distribution, you must obtain a certificate from a commercial certificate authority CA. Certificate authorities do background checks to verify that the people who create content such as databases are reputable.

 
 

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Microsoft office security options access 2010 free.Introduction to Access 2010 security

 
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Macros support basic logic IF-conditions and the ability to call other macros. The corresponding SQL Server data type is binary, with only two states, permissible values, zero and 1. If you open a database in a trusted location, all components run without the need to make trust decisions. It uses Здесь and machine learning for advanced database management. Replace Attachment Field Paperclip Icon. It also allows you to suspend active downloads and resume downloads that have failed.