Security audit
Safe Facebook Messenger
Security checks for vulnerabilities and agentic risk
Overview
This is a disclosed safety workflow for operating a signed-in Facebook Messenger browser session, with no bundled code or persistence, but it can read and send messages when used.
Install only if you are comfortable letting the agent operate a signed-in Messenger session. Use a dedicated or carefully chosen Chrome profile, supervise sends, and prefer draft mode for sensitive, financial, legal, professional, or emotionally high-stakes conversations.
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
Vulnerability Patterns
- Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
- Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
- 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
Static analysis
No suspicious patterns detected.