Signal & Shadow | Derek Bowler
LinkedInnewsletter · by Derek Bowler
Weekly notes on open-source intelligence and investigative methodology from signalandshadow.io
- Audience
- Not shown publicly
- We show a dash rather than guess
- Observed frequency
- Weekly
- From 5 posts indexed in the last 90 days
- Last post
- Oct 22, 2026
- 13 days ago
- Likely audience
- OSINT practitioners
- Inferred from post content
Signal & Shadow | Derek Bowler is a LinkedIn newsletter by Derek Bowler covering OSINT methodology, Satellite imagery analysis and Sanctions screening. NewsletterFIT indexed 5 posts from it in the last 90 days, most recently on Oct 22, 2026.
Topics
- OSINT methodology
- Satellite imagery analysis
- Sanctions screening
- Telecommunications infrastructure
- Email forensics
Recent posts
- This week…
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Sponsors detected
No sponsored posts detected in the last 180 days of indexed posts.
Detected automatically from posts marked as sponsored. Detection can miss or misread placements.
See the full picture on Signal & Shadow | Derek Bowler
Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.
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Compiled from public pages · refreshed Nov 5, 2026 · How NewsletterFIT collects and labels data