UM-Labs

UM-Labs is a UK-based cybersecurity vendor focused on securing real-time unified communications — voice, video, and SIP-based traffic — across cloud, mobile, and IoT-connected endpoints. Its flagship Hoox Security Platform (HSP), built on an underlying "Unicus" UOS layer, sits in front of Unified Communications infrastructure to encrypt and authenticate SIP/VoIP sessions, addressing a corner of network security that mainstream vendors largely treat as secondary: toll fraud, call interception, denial-of-service against voice infrastructure, and man-in-the-middle attacks on real-time media streams.

The company’s technology is deployable as a virtual appliance or cloud service in front of any UC platform — Microsoft Teams, Cisco, Avaya, or generic SIP trunks — rather than requiring a proprietary phone system, which differentiates it from UC vendors’ native security features that only protect their own stack. UM-Labs states its SIP security layer has been validated through penetration testing and proof-of-concept engagements, though the company does not publish named enterprise customers or independent lab test results.

Given the very small footprint of this vendor — a self-funded R&D shop with no disclosed institutional funding and no publicly named large customers — it sits at the niche end of network security: genuinely relevant to organizations running unmanaged or multi-vendor UC/VoIP environments that need a security overlay, but with far less market validation than mainstream network security vendors.