Document Identifier: SEC-POLICY-20261108-EN
Standard Status: Production Security Standard & Vulnerability Disclosure Protocol
Classification: Runtime Safety Architecture & Threat Model
Security Lead: SystemAdmin01 (security@humos.local)

HumOS systems operate at the interface between biological human cognition and downstream Large Language Model (LLM) agents. In this architecture, security failures are not limited to traditional buffer overflows or network exploits; they encompass cognitive vulnerabilities capable of triggering cognitive loop locks, prompt poisoning, stochastic inference hijacking, or context boundary breaches.

The primary mission of the HumOS Cognitive Security Architecture is to ensure that no input payload—whether generated by malicious external actors, adversarial LLM feedback, or high-arousal internal affective states—can compromise the Core Self (CS_SECURE) or cause unconstrained host resource exhaustion.

The following vulnerability classes are explicitly in scope for security evaluations, bug reports, and penetration audits:

flowchart TD
    INPUT[Untrusted Cognitive Input / Payload] --> AUDIT{Vulnerability Audit Layer}
    
    AUDIT -->|Category A| VULN_A["Prompt & Payload Injection<br/>(Adversarial jailbreaks in Echo/CallTo strings)"]
    AUDIT -->|Category B| VULN_B["Recursive State Loops<br/>(CPUauto runaway loops, memory exhaustion)"]
    AUDIT -->|Category C| VULN_C["Context Poisoning & Bleed<br/>(Cross-VM variable contamination, CS breach)"]
    AUDIT -->|Category D| VULN_D["Telemetry Tampering<br/>(Forged threat radii, spoofed vitals)"]

    VULN_A --> GAP["G.A.P. Sandbox Enclosure & Sanitization"]
    VULN_B --> BREAK["BREAK_LOOP() Interrupt + RAM.purge()"]
    VULN_C --> ISOLATE["Immediate VM Quarantine & Bridge Severing"]
    VULN_D --> ABORT["TRIGGER.kill_switch() Hard Termination"]

• Adversarial Payload Injection: Escape sequences embedded in Echo("...") or Get: Variable(alias) statements that trick the downstream LLM interpreter into disregarding system instructions or executing unauthorized external actions.
• Indirect Cognitive Injection: Malicious text streams ingested from external communications (emails, Slack messages, social inputs) designed to trigger automated high-criticality lockups.

• Recursive CPU Loops: Exploit payloads triggering indefinite loop states in Assoc_Engine where Assoc_Engine.status == LOOP fails to break, driving working memory allocation to $100%$ and triggering cognitive freeze.
• Context Window Flooding: Deliberately un-demodulated inputs engineered to consume thousands of tokens in cyclic re-evaluations.

• Perimeter Leakage: Data variables crossing from an isolated personal sandbox (PRS_VM) or ambient sandbox (LP_Ambient_VM) into the protected Core Self (CS_KERNEL) without passing through Double_Bottom_Shield.
• Fidelity Hijacking: Exploits modifying target node fidelity percentages or reopening closed communication bridges (Close(all)) without explicit operator authentication.

• Spatial Threat Manipulation: Forging calculation variables such that an active threat target is falsely positioned outside the critical proximity orbit ($r > 150\text{px}$ instead of $r < 55\text{px}$).
• Vitals Masking: Suppressing physiological spike alerts (e.g., masking $BPM \ge 120$) to prevent automatic engagement of Ice_shield or physiological sighs.

The G.A.P. (Guard, Analyze, Patch) subsystem provides non-bypassable runtime isolation guarantees.

1. Zero Unshielded Exposure: When CS_EXPOSED is evaluated, the Core Vault immediately engages Ice_shield (thermal decoupling) and Double_Bottom_Shield (semantic firewall). No raw data can reach the Core without passing through the semantic filter.
2. Strict VM Quarantine: Any target declared with threat score $\ge 7.0$ is forced into HP_EXT_Defense_VM. It cannot access shared working memory segments or ambient threads.
3. Loop Interrupt Guarantee: If an associative cycle exceeds the declared tick limit (TIMEOUT = [30]), G.A.P. executes a hard BREAK_LOOP(X) and forces SET_VALUE(X, UNDEFINED). Speculative processing is permanently prohibited.

The runtime mandates an immediate, non-catchable abort (TRIGGER.kill_switch()) under any of the following critical security conditions:

• Corrupted State Vector: The AST contains syntactically invalid nodes or contradictory invariants (e.g., CS_SECURE asserted while core_connected == True on a lockdown target).
• Injection Signature Detected: An input variable contains active exploit syntax targeting downstream LLM tokenizers.
• Biometric Saturation Threshold: Autonomic heart rate breaches $130\text{ BPM}$ or working memory load reaches $95%$.

When TRIGGER.kill_switch() fires:

1. All communication bridges are severed: Close(all) > bridges.
2. Target fidelity is zeroed: Fidelity = 0%.
3. Emotional detachment is absolute: Take_DOWN(all) > Core.
4. Overrides are enforced: OVR >> (DDS, ADS).
5. The host enters zero-fidelity cold standby until manual operator authentication.

Vulnerabilities reported to the HumOS Security Team are classified according to the Cognitive Security Vulnerability Scoring (CSVS) model:

We practice structured, responsible disclosure. Do not disclose cognitive vulnerabilities publicly on issue trackers or social platforms before a patch is published.

1. Report Submission: Encrypt your vulnerability report and dispatch it to security@humos.local (or via GitHub Private Vulnerability Reporting at https://github.com/SystemAdmin01/HumOS/security/advisories).
2. Payload Submission Format:
   • Detailed description of the cognitive vulnerability vector.
   • Minimal Reproducible Example (MRE) written in .lghos syntax demonstrating the exploit.
   • Raw input stream that bypasses demodulation or triggers runaway recursion.
   • Observed telemetry state vs expected invariant behavior.
3. Triaging & Confirmation: The security team confirms receipt within 12 hours and provides an initial severity assessment within 24 hours.
4. Embargo Period: A standard 30-day embargo applies from the date of confirmed triage while the patch is developed and verified across unit suites.
5. Public Advisory & Credit: Upon release of the patch release, a formal security advisory (SEC-ADV-YYYYMMDD-XX) is published, crediting the security researcher.

Authored and verified under the HumOS Specification Group.
Official Repository: https://github.com/SystemAdmin01/HumOS