Safe execution of Excel macros: Use only trusted sources

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Excel macros are a powerful tool for automating tasks. However, their use also poses security risks if malicious macros are activated from unsafe sources . This article explains how to run macros only from secure sources and the security levels Excel offers.

The different security levels for macros in Excel
Microsoft Excel offers different security levels for running macros. These help minimize the risk of malicious scripts:

Disable all macros (highest security)
This setting disables all macros, regardless of their source. This provides maximum protection, but may make it difficult to use legitimate macros.
Disable macros with notification
With this option, macros are disabled by default, chinese overseas asia database but users receive a warning and can decide whether they want to enable a specific macro.
Enable macros only with digital signatures.
This will only run macros with a trusted digital signature. Unsigned or unknown macros remain disabled.
Enable all macros (not recommended)
This unsafe option runs all macros without prompting and should only be used in controlled environments.
Activate macros specifically: How to proceed
To ensure that you only run trusted macros, you should follow these steps:

Use trusted locations: Save files with macros to folders marked as safe. Excel will automatically run macros from these locations.
Check digital signatures: Make sure macros are signed by trusted publishers before enabling them.
Enable macros only when necessary: ​​If you open a file from an unknown source, you should only enable macros if they are really necessary and the source has been confirmed.
Conclusion: Security through targeted activation of macros
By correctly configuring security levels and being aware of trusted sources, you can use Excel macros safely. These measures minimize risks while still reaping the benefits of automation.