OSI Security is an independent network and computer security auditing and consulting company based in Sydney Australia. We provide vendor neutral and independent advice to government, small-medium business, corporate enterprise and not-for-profit organisations. Services include our managed penetration testing services, vulnerability auditing and wireless site audits, vendor product assessments, secure network design, forensics and risk mitigation services. Our support offering includes support packs, software and hardware installation such as firewalls and VPNs, configuration, 3rd party configuration review and emergency diagnosis and response for network outages, virus and worm outbreaks and other advanced diagnostics.