Unlock Digital Detective Skills with the 2025 Forensics Challenge – Solve the Cyber Mysteries!

FastSum is a checksum utility that focuses primarily on evaluating the integrity of files. After computing checksums, it provides a mathematical representation of the data in the files. This allows users to verify whether the contents of files have remained consistent over time by checking if the computed checksum value matches the expected one. If the checksums are the same, it indicates that the file integrity is intact, meaning there have been no unauthorized modifications or corruption.

The other choices discuss aspects of file management that are not within the scope of FastSum's functionality. For example, file creation dates pertain to metadata rather than content integrity, user access logs are concerned with tracking user interactions with files, and process execution time is related to how long a process takes to run, none of which are relevant to the checksum calculations performed by FastSum.