Speaker



Wicus Ross

senior security researcher, Orange Cyberdefense

Wicus Ross is currently the senior security researcher at Orange Cyberdefense (formerly SecureData). He is tasked with investigating industry events and trends, with the single purpose of understanding how these may affect business. Ross uses his understanding and knowledge to advise customers and threat detection/hunting teams on the appropriate response given the threat or trend. His insights are often used to create new detection processes or tools. Ross’ current role builds on over a decade of experience working as a software developer at an e-commerce technology vendor. He is a regular speaker at conferences and he enjoys conveying complicated technical concepts in ways the audience can relate to. He is a graduate of the Cape Peninsula University of Technology.

Wicus Ross will be speaking on the following topics:

14:00
Welcome from the Track Chair


14:00
Welcome from the Track chair


16:05
Virtually private networks (are they virtually good enough?)

Enterprise businesses equip staff with mobile devices such as laptops and smartphones to perform daily tasks. This makes the workforce much more mobile but places an implicit burden on the staff to ensure they are always online. Security is handled by the underlying operating system and supporting solutions, for example, a virtual private network (VPN). Commercial VPN technology has been around since at least 1996 when Microsoft created the Peer to Peer Tunnelling Protocol (PPTP). OpenVPN and similar open source VPN technologies have advanced this tech from highly specialised to near commodity.

However, enterprise VPN solutions can be complicated and nuanced. One case involves remote workers that connect to complimentary Internet hotspots typically offered by coffee shops, airports, hotels, etc. Hotspots are WiFi access points that offer free Internet bandwidth. Most hotspots today feature a captive portal that require either a password, voucher code, or some form of consent that involves agreeing to terms of use. A robust VPN implementation should not allow a user to interact with a network resource that bypasses the VPN tunnel. What then happens in the time between connecting to the WiFi hotspot and activating the VPN? How vulnerable is the user during this time? Surely the WiFi hotspot securely isolates guests and surely the local firewall on the laptop will protect the user from any attacker, but does this assumption hold even if the hotspot is fully under the control of an attacker?

In this presentation, we will reveal research we conducted into the efficacy of modern commercial and open source VPN solutions in the face of modern mobile worker use cases, typical endpoint technologies and contemporary threat models. In short: VPNs – are they enough?


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