AlienVault, the only open and collaborative Unified Security Management platform delivering integrated controls and full visibility, today announced that it has closed a $22.4 million Series C funding round led by Kleiner Perkins Caufield & Byers (KPCB) and Sigma, with participation from existing investors Trident Capital and Adara Venture Partners. The funding will be used to expand the company's sales, marketing and support functions as well as further invest in research and development.

AlienVault provides organizations of all types and sizes with unprecedented visibility across the entire security 'stack' with the AlienVault Unified Security Management™ (AV-USM™) platform. Based on OSSIM - the de facto standard open source SIEM created by AlienVault - the AV-USM platform has five essential security capabilities built-in: asset discovery, vulnerability assessment, threat detection, behavioral monitoring and security intelligence. The AlienVault Open Threat Exchange™, a system for sharing threat intelligence among OSSIM users and AlienVault customers, ensures AV-USM always stays ahead of threats. AlienVault is a privately held company headquartered in Silicon Valley and backed by Kleiner Perkins Caufield & Byers, Sigma, Trident Capital and Adara Venture Partners. For more information visit www.AlienVault.com