Threat IntelligenceMay 2026 · 6 min read

How Opposing Counsel Mines Metadata From Your Documents — And What They Find

This is not theoretical. Metadata extraction is a standard step in e-discovery and litigation support. Every document you send is a potential intelligence source for the other side. Here's what they actually do with it.

Step 1: They open your file in a metadata viewer

The most basic metadata extraction requires nothing more than right-clicking a file and opening Properties on Windows, or pressing ⌘I on a Mac. Litigation support professionals use tools like ExifTool, Apache Tika, or Metadata Interrogator to extract every field across hundreds of documents at once.

What they typically find in a law firm's documents

🔍 The attorney who actually drafted the document

May reveal the drafter isn't who signed it — chain of custody and authenticity questions arise

🔍 How many times the document was revised

High revision counts on a 'final' version suggest it was heavily negotiated — valuable strategic intelligence

🔍 The original creation date vs. the document date

A contract 'dated' weeks before it was actually created is a serious authenticity problem

🔍 Content you deleted from early drafts

DOCX XML stores deleted text — paragraphs you removed may still be in the file and extractable

🔍 Your firm's internal naming conventions

Template names reveal your firm's file organization — can be used to probe other matters

🔍 Total editing time

A document claiming to be carefully reviewed that shows 3 minutes of editing time undermines credibility

Is metadata mining by opposing counsel ethical?

Under ABA Formal Opinion 06-442, opposing counsel in civil matters may review metadata from documents you voluntarily produce. However, if the metadata contains privileged or work-product-protected information, it's more complicated — and you may have grounds to object and demand destruction of any extracted metadata.

The cleanest defense is not to send the metadata at all. A scrubbed document gives opposing counsel nothing to mine. See our state-by-state ethics guide for what your bar says.

Don't give them anything to find.

ShieldDrop removes it all. In your browser. Free to start.

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