Paul's Security Weekly (Audio) Exploring Meshtastic and LoRa Mesh Networks - Rob Allen - PSW #881
Jul 3, 2025
Rob Allen, Chief Product Officer at ThreatLocker, joins the discussion to explore innovative technologies like Meshtastic and LoRa. They delve into how these systems facilitate secure, off-grid communication, perfect for adventurers and privacy advocates. Topics include the origins of Meshtastic, practical hardware options, and intriguing use cases for encrypted messaging. The conversation also touches on firmware installation tips and the growing community surrounding these systems, making this a must-listen for tech enthusiasts and security aficionados.
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Default‑Deny Reduces Dependency On Detection
- Default‑deny controls reduce reliance on detection and unknown vulnerability lists.
- ThreatLocker blocks execution and limits what running apps can do, reducing attack surface despite unknown flaws.
Simple Rule Stopped Polymorphic Shells
- Rob demonstrated a polymorphic reverse shell that evaded many tools but was blocked by ThreatLocker rules.
- ThreatLocker prevented it by simply denying PowerShell internet access, stopping the attack at the control layer.
LoRa Mesh Enables Off‑Grid Encrypted Messaging
- MeshTastic leverages LoRa to provide encrypted, long-range, infrastructure-free messaging for off-grid use.
- It enables decentralized, low-bandwidth telemetry and ad-hoc text messaging for preppers, responders, and hackers.