Security enhancements
Macro Security Microsoft Office Access 2003 allows you to protect against potentially unsafe Visual Basic for Applications (VBA) code by setting the macro security level. You can set the security level so that you are prompted every time that you open a database containing VBA code, or you can automatically block databases that are from unknown sources.
Additionally, Access uses Microsoft Authenticode technology to enable you to digitally sign a macro project by using a digital certificate. The certificate used to create this signature confirms that the macro originated from the signer, and the signature confirms that it has not been altered. When you set the macro security level, you can run macros based on whether they are digitally signed by a developer on your list of trusted sources.
Block Potentially Unsafe Functions Access utilizes the Microsoft Jet Expression Service enhanced sandbox mode to block potentially unsafe functions from being used in expressions.