Denholm Knowles
@historyofcyber.substack.com
Cyber security historian
https://historyofcyber.substack.com/
Author of "Freaks of the Wireless"
https://securityblendbooks.com/products/freaks-of-the-wireless
https://historyofcyber.substack.com/
Author of "Freaks of the Wireless"
https://securityblendbooks.com/products/freaks-of-the-wireless
Journal Obscura
My new blog for 2026 looking at the history of security and technology!
It would be nice to kick off the year with a few subscribers!
My new blog for 2026 looking at the history of security and technology!
It would be nice to kick off the year with a few subscribers!
Journal Obscura
A blog about security and technology history
open.substack.com
December 27, 2025 at 2:36 PM
Journal Obscura
My new blog for 2026 looking at the history of security and technology!
It would be nice to kick off the year with a few subscribers!
My new blog for 2026 looking at the history of security and technology!
It would be nice to kick off the year with a few subscribers!