Periphery

Periphery develops device-level cybersecurity software for embedded and cyber-physical systems used in critical infrastructure, defence and AI infrastructure. Rather than relying on network monitoring, the company ships lightweight software agents that run directly on the device, hardening risky configurations, recording what changed on an asset, and detecting and blocking anomalous behaviour. The agents are described as architecture-agnostic, light on network and power use, and intended to be embedded at the point of manufacture, then updated over the device lifecycle as new threats and regulations appear.

The product line is organised into three modules. Insights provides point-in-time security evaluation, agent-based penetration testing and software bill of materials (SBOM) risk analysis covering outdated libraries, dependencies and software supply-chain risk. Vantage provides on-premise intelligence over data from every asset, baselining assets, showing what changed and restoring to a known-good state. Outpost, listed in beta, is a runtime security agent for Linux device layers and RTOS application layers that performs on-device behavioural analysis at kernel and application layers to identify zero-day exploits without signature updates, blocks malicious processes locally, and operates offline or in air-gapped environments. Outpost is also positioned to protect local AI tooling and proprietary model weights in autonomous driving and robotics systems, and to produce tamper-evident runtime logs and audit evidence.

At the time of its 2024 pre-seed announcement the company described its work in terms of extended IoT (XIoT) security and Host-Based Intrusion Detection and Response System (HIDRS) capabilities, with micro software agents combining machine learning for threat identification and prevention.