Security audit

Mic Recorder

Security checks for vulnerabilities and agentic risk

Overview

This skill openly records microphone audio and sends it to Feishu, with the main user risk being that recordings may include private background speech.

Install only if you intend to record local microphone audio and send it to Feishu. Use it where everyone affected has consented, keep recording duration minimal, review or delete recordings when appropriate, and verify the local RecordMic.app yourself because it is outside the published skill artifact.

A.I.G

Vulnerability Patterns

Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns

Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (2)

Missing User Warnings

Medium

Confidence: 95% confidence
Finding: The skill instructs users to record microphone audio, including background sound, and send the resulting file to Feishu, but it does not present any explicit privacy warning, consent requirement, or guidance to avoid capturing third-party conversations. Because microphone capture can collect sensitive speech and ambient data, the absence of prominent notice and consent safeguards creates a real privacy and data-exfiltration risk.

Natural-Language Policy Violations

Low

Confidence: 85% confidence
Finding: The description forces a specific language/locale presentation in Chinese, and the document does not indicate that this is optional or restricted to a China-specific audience. Under the policy, language constraints should be opt-in or clearly justified.

Static analysis

No suspicious patterns detected.