## Overview
Neural Tap Surveillance (NTS) refers to a class of covert or semi-covert data extraction techniques targeting neural interface implants — the cortical mesh arrays, cognitive augmentation chips, and sensory bridge devices that approximately 34% of GLMZ's population carries. Unlike traditional surveillance, which observes external behavior, NTS operates at the interface between digital and neurological signal, capturing surface-layer data outputs from implants that were not designed with adversarial extraction in mind. The practice exists in a fractured legal landscape: it is explicitly prohibited under the Neural Data as Property statutes when conducted without consent, but is authorized under specific law enforcement warrants and is openly practiced by corponation security divisions within their sovereign zones under corporate terms-of-service provisions that most implant recipients signed without full comprehension.

## Technical Mechanisms
Neural interfaces communicate with external systems via short-range encrypted radio protocols, most commonly a variant of the NeuroLink 4.1 standard maintained by the Implant Interoperability Consortium. Early NTS techniques exploited unpatched vulnerabilities in the NeuroLink handshake sequence to perform passive interception of data packets transiting between implant and authorized peripheral devices. Modern NTS is more sophisticated: dedicated hardware probes embedded in furniture, transit seating, and medical-adjacent environments perform signal injection attacks that temporarily destabilize the implant's encryption context, creating a brief window during which unencrypted data fragments are recoverable. These fragments typically include location telemetry, active application states, and in higher-bandwidth implants, sensory capture logs.

## Authorized and Unauthorized Use
Authorized NTS is available to law enforcement under a Neural Interface Intercept Warrant, which requires judicial review and is theoretically subject to strict use limitations. In practice, the classified operational doctrine governing NTS warrants has not been publicly disclosed, and oversight bodies have repeatedly failed to obtain disclosure through standard records requests. Corponation security divisions treat neural tap capability as a proprietary security tool and routinely deploy it in internal investigations involving suspected data theft or loyalty violations. The most controversial application is pre-employment screening: at least four major Tier 1 corponations are known to conduct NTS-based screening of final-round candidates, framing it as a voluntary neurological compatibility assessment.

## Countermeasures and the Arms Race
The neural security industry has grown substantially in response to NTS proliferation. Aftermarket encryption co-processors — colloquially called ghost chips — can be installed alongside primary neural implants to provide an additional layer of signal obfuscation. Signal-jamming undergarments that suppress NeuroLink-band radio frequency at close range are available in both consumer and tactical grades. However, the most reliable countermeasure remains not carrying a neural implant at all, a choice that is increasingly untenable as critical civic and employment infrastructure migrates to implant-native interaction models. The asymmetry between the social cost of non-augmentation and the privacy cost of augmentation is one of the defining pressures on lower-tier citizens in contemporary GLMZ.