What is referred to as the methods used to counteract U.S. surveillance technologies?

The term that describes the methods used to counteract U.S. surveillance technologies is "Technical Countermeasures." This encompasses a range of strategies and tools designed to detect, disrupt, or mitigate the impact of surveillance efforts. These measures are essential for maintaining the security and privacy of sensitive information against potential threats posed by adversarial entities that utilize advanced surveillance technologies.

In practice, technical countermeasures may involve employing counter-surveillance techniques, electronic countermeasures, and security protocols that aim to protect against unauthorized access and intelligence gathering. By actively implementing these measures, individuals and organizations can safeguard themselves from various forms of surveillance that may compromise their operations or reveal critical data.

Other options refer to different concepts; workplace violence pertains to harmful actions in the work environment, precision activities by adversaries might suggest tactical actions during conflicts but do not specifically address surveillance, and indicators of foreign intelligence targeting relate to signs that intelligence activities are occurring but do not refer to the methods of counteracting them. Thus, the focus on protective strategies makes "Technical Countermeasures" the appropriate choice.