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Unallocated space analysis

ID: 820446b5-6db2-5c78-962a-de9b5a5da10b

STIX ID: report--820446b5-6db2-5c78-962a-de9b5a5da10b

Feed Name: Pen Test Partners Blog

Date Published: 2025-04-23

Date Updated: 2026-03-26

Author: Luke Davis

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This report outlines the forensic value of unallocated disk space in investigations, emphasizing how remnants of deleted or reformatted data can reveal user activity and potential data exfiltration. It details the use of PhotoRec for signature-based file carving and describes mounting unallocated space to enable targeted searches for documents, archives, and scripts. The guidance highlights how recovered artifacts and timestamps can reconstruct timelines and expose attempts to tamper with or conceal evidence.

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