Wikipedia
GreenBorder was a security software company that specialized in using virtualization to create safe zones for online activities for Internet users. GreenBorder let computer operators combine hardware and software to create "virtual" machines where tasks such as reading e-mail or exploring websites could be done without exposing systems to viruses or other malicious programs. Web-based programs that try to access files or computer registries are stopped from leaving what are commonly referred to as online "sandboxes" created by GreenBorder. The virtual "sandboxes" vanish at the end of each session, taking attacker assaults such as spyware, viruses, and trojans with them.
GreenBorder was founded in 2001 by Vlad Dabija (founding CEO until 2004), Ăšlfar Erlingsson (founding CTO until 2002), Rosen Sharma and Srinivasan Keshav (as founding board members). The initial investors were Rajeev Motwani, Sevin Rosen Funds, and Labrador Ventures, joined in Series B by TPG Ventures. Bernard Harguindeguy joined the team in 2005 as the CEO and lead the turnaround before selling the company to Google.