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Using Signal Groups for Activism

ID: d4adf60e-a952-5651-984f-c44f78cb7e07

STIX ID: report--d4adf60e-a952-5651-984f-c44f78cb7e07

Feed Name: Schneier on Security

Date Published: 2025-07-10

Date Updated: 2026-04-19

Author: Bruce Schneier

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A reflective discussion on the late publicization of Operation Vula and how older 1980s-era computing and telephony (air-gapped 8-bit systems, removable media, public phone boxes) provided stronger operational security than today’s internet-connected, telemetry-heavy devices; it recounts improvised clandestine communications such as numbers stations, DTMF message delivery, and tapping telephone pairs/NVIS HF, and argues modern mobile networks and AI/LLM platforms erode anonymity, meaning any present-day equivalent would require very different tradecraft.

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