Version 1.0.0 File modification detection sounds simple until you realise that timestamps can be forged, file sizes can stay identical while content changes, and simple diff tools often miss what matters most: the actual bytes. If you work in IT security, digital forensics, compliance, or system administration, you need a way to verify file integrity that goes deeper than metadata. In this tutorial, you'll build a PowerShell script that creates cryptographic hash baselines of directories and detects modifications that other tools miss. The Problem with Simple File Comparison Most file comparison tools check three things: File name File size Timestamp (created/modified) An attacker with filesystem access can modify all three. A legitimate user editing a document might change content while the file size stays identical. A script running with admin privileges can alter files and reset timestamps to cover its tracks. What doesn't lie: the cryptographic hash.…