Defender Monitoring Sensitivity

Coined Term • 2026

Defender Monitoring Sensitivity

The minimum CPQ change detectable per training cycle in a monitoring architecture

Status

Coined by Joseph Byrum

Year Introduced

2026

Domain

Entity Engineering

Term Type

Adversarial Framework

Understanding Defender Monitoring Sensitivity

The minimum detectable CPQ change per AI training cycle in the defender's monitoring architecture. Two architectures: σ_monitor_prob (corpus-based) and σ_monitor_cat (registry-based, m-stable). Detection latency condition: n_min_stealth = ⌈P_min / σ_monitor⌉ – attacker must spread payload across this many training cycles to remain undetected. ADT Sub-Theorem 2.

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Frequently Asked Questions

What is Defender Monitoring Sensitivity?

Defender Monitoring Sensitivity (σ_monitor) is the minimum detectable CPQ change per AI training cycle in the defender's monitoring architecture. It determines how quickly an adversarial attack can be detected and differentiates two monitoring architectures: corpus-based (σ_monitor_prob) and registry-based (σ_monitor_cat, which is m-stable).

How does monitoring sensitivity affect attacker stealth?

The detection latency condition n_min_stealth = ⌈P_min / σ_monitor⌉ determines how many training cycles an attacker must spread their payload across to remain below detection threshold. Lower σ_monitor means attackers can operate stealthily for fewer cycles — or must deliver smaller payloads per cycle, reducing attack efficiency.

Why does registry-based monitoring outperform corpus-based?

Registry-based monitoring (σ_monitor_cat) is m-stable — its sensitivity does not degrade as competitive adoption rises. Corpus-based monitoring (σ_monitor_prob) degrades at competitive saturation because the signal-to-noise ratio falls as more entities invest in probabilistic signals, masking adversarial injections.

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