Silent Brothers | Ollama Hosts Form Anonymous AI Network Beyond Platform Guardrails

The SentinelLABS and Censys study identifies ~175k internet-exposed Ollama self-hosted LLM instances across 130 countries, with a persistent backbone of highly available hosts, widespread tool-calling and vision capabilities, and heavy convergence on a few model families and 4-bit quantization formats; the report warns this unmanaged, partially attributable layer enables resource hijacking, prompt-injection-driven data access, proxying/identity laundering from residential IPs, and systemic risk from monoculture deployments, and recommends treating edge LLMs like other externally accessible infrastructure with authentication, monitoring, and adapted governance.