From around 2019 to 2024, the Cybersecurity and Infrastructure Security Agency (CISA) conducted a set of technical and operational activities to evaluate the security of certain U.S. election systems. These activities, all carried out upon the request of system owners and operators, included direct examination of election-related software; penetration testing of state, local, tribal, and territorial (SLTT) networks; and incident response operations for intrusions into elections systems.
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