To minimize administrative effort in adding threat indicators for a range of IP addresses, what is the best approach in the Microsoft 365 Defender portal?

The approach of creating an import file that contains the individual IP addresses in the range is effective because it allows for a structured way to handle multiple entries simultaneously. This method is particularly beneficial when dealing with a broader range of IP addresses, as it minimizes the likelihood of human error that may occur when entering each IP address manually.

When you opt to create an import file, you can prepare a comprehensive list of all relevant IP addresses in advance, ensuring that the format is consistent and accurate. Importing the file at once reduces the administrative burden significantly compared to adding each IP address individually. This streamlined process enhances efficiency, especially in environments where cybersecurity needs to be adjusted quickly in response to emerging threats.

Utilizing an import file rather than adding individual IP addresses provides a scalable approach to threat management, as you can easily update or replace this file as new threat indicators arise or as changes are needed. This becomes essential in maintaining a robust security posture without overwhelming administrative resources.

In summary, utilizing an import file to manage multiple IP addresses effectively streamlines the process of adding threat indicators, thereby minimizing administrative effort while remaining accurate and efficient.