nFox launches Blockhouse sandbox, plans to open-source it
AI governance startup nFOX Lab launched the nFOX Platform for managing self-hosted large language models and said it plans to release its Blockhouse security sandbox under the Apache 2.0 license. Blockhouse removes privileges by default and restores access through policies enforced at the Linux kernel level, routing communications through a monitored channel called Porthole and keeping runtime credentials and audit controls outside the model process. It supports the vLLM, SGLang and llama.cpp inference engines, while the platform is available now across cloud VMs, rented GPU hosts and on-premises Linux servers with Nvidia GPUs; Blockhouse is in beta for qualified enterprise evaluations. Founder and CEO Gordon Allott said the company is self-funded, has paying beta pilot customers but is not yet profitable, and intends to raise venture capital and later expand into agent protection.
Running open models in-house shifts security responsibility onto the enterprise itself, and kernel-level containment offers one way to treat model workloads as potentially hostile.