TECH Signal 507
DHS infiltrated Signal chats and sent undercover agents to surveil anti-ICE protesters
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Newly disclosed records reveal DHS conducted extensive surveillance of leftwing organizations and anti-ICE protesters, including infiltrating Signal chats, sending undercover agents to community meetings, and obtaining financial records of unions and non-profits through administrative subpoenas.
The infiltration of Signal chats demonstrates that even end-to-end encrypted messaging is vulnerable when an agent gains access from inside the conversation. Engineers building secure communication tools should note that DHS used administrative subpoenas to obtain financial records and positioned undercover agents to participate directly in organizing spaces, bypassing technical protections entirely.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
DHS launched 'Operation Puppet Master' in January to identify organizers opposing ICE, following Trump's executive order designating 'antifa' a domestic terrorist organization.
Undercover DHS agents infiltrated Signal chats and attended community meetings, including a Sunrise Movement training at the Minneapolis public library where an agent actively engaged participants.
DHS obtained financial records from unions and non-profits including SEIU and Communications Workers of America using administrative subpoenas, a lower legal threshold than a court order.
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