Contact
Social
Category & trade
Primary
information-and-network-security · embed-ft 0.63
Tree path
Technology & Computing › Computing › Information and Network Security
Group (tier-1)
Tech stack
AI readiness
AI-Readiness score
46 / 100 · partial · see similar
AI training policy
allowed
Terms of Service
found · https://substack.com/tos
AI-bot protection
AI files
Compliance (GEO / GDPR)
TLD
Overview
Title
DEFENDER | David Marsh | Substack
Description
Welcome to Defender, the platform that brings you crowd-sourced physical security insights and commentary from leading industry professionals to help you protect lives, secure property, and defend against evolving threats. Click to read DEFENDER, a Substack publication with thousands of subscribers.
Final URL
Language
en (html)
Scanned at
2026-06-21 00:30:40